Substituted quinazoline compounds and uses thereof for modulating glucocerebrosidase activity

ABSTRACT

Disclosed are new small molecules having a substituted quinazoline core structure and the uses thereof for modulating glucocerebrosidase activity. Also disclosed are pharmaceutical compositions comprising the small molecules or activated glucocerebrosidase conjugated to the small molecules, which compositions may be administered in methods of treating diseases or disorders associated with glucocerebrosidase activity, including neurological diseases and disorders such as Gaucher&#39;s disease and Parkinson&#39;s disease.

CROSS-REFERENCE TO RELATED PATENT APPLICATIONS

The present application is a continuation of U.S. application Ser. No.15/199,207, filed on Jun. 30, 2016, which application claims the benefitof priority under 35 U.S.C. § 119(e) to U.S. Provisional PatentApplication No. 62/187,461, filed on Jul. 1, 2015, the contents of whichare incorporated herein by reference in their entireties.

BACKGROUND

The field of the invention relates to new small molecules and uses ofthe new small molecules for modulating glucocerebrosidase activity. Thenew small molecules have a substituted quinazoline core structure andmay be administered to treat diseases and disorders associated withaberrant glucocerebrosidase activity including neurodegenerativediseases, such as Gaucher's disease and Parkinson's disease

Glucocerebrosidase (EC 3.2.1.45), which also is calledβ-glucocerebrosidase, β-glucosidase, D-glucosyl-N-acylsphingosineglucohydrolase, or GCase, is an enzyme having glucosylceramidaseactivity. Glucocerebrosidase (GCase) is required to cleave thebeta-glucosidic linkage of the chemical glucocerebroside, which is anintermediate in glycolipid metabolism. Glucocerebrosidase is localizedin the lysosome and disabling mutations in the gene forglucocerebrosidase (GBA1) are associated with abnormal accumulation oflipids in lysosomes.

Genetic diseases caused by mutations in GBA1 include neurodegenerativediseases such as Gaucher's disease and Parkinson's disease. Gaucher'sdisease is a rare genetic disease caused by GBA1 gene mutations.Currently, the treatment for Type 1 Gaucher's disease is enzymereplacement therapy (ERT) administered every two weeks. ERT is veryexpensive and not effective for neuronopathic forms of Gaucher'sdisease. Mutations in GBA1 also are linked to Parkinson's disease (PD)and increase the risk of PD.

The so-called “pharmacological chaperone strategy” has been previouslyattempted in order to activate GCase as a treatment for diseases anddisorders associated with deficient GCase activity. However, none of thecompounds used in the pharmacological chaperone strategy were successfulin activating GCase presumably because they targeted the active site ofGCase.

Here, we disclose novel substituted quinazoline compounds which modulateglucocerebrosidase activity. Some of the novel compounds have potentinhibitory activity and binding affinity. As such, these compounds couldbe used as pharmacological chaperones. In addition, some of thecompounds in the present study showed high activation activity in GCaseactivity assays and could be used as GCase activators. The novelsubstituted quinazoline compounds disclosed herein have better chemicaland physical properties than previous reported non-active site GCaseinhibitors. (See Marugan et al., J. Med. Chem. 2011; 54(4) 1033-58, thecontents of which is incorporated herein by reference in its entirety).These better chemical and physical properties include polar surfacearea, solubility, increased number of rotatable bonds, and increasednumber of potential hydrogen bonding members.

SUMMARY

Disclosed are new small molecules having a quinazoline core structureand uses of the small molecules for modulating glucocerebrosidaseactivity. The new small molecules preferably modulate glucocerebrosidaseactivity by binding to glucocerebrosidase and inhibiting, oralternatively activating glucocerebrosidase. The new small molecules maybe formulated as pharmaceutical compositions that comprise the smallmolecules or that comprise activated glucocerebrosidase conjugated tothe small molecules, which compositions may be administered in methodsof treating and/or preventing diseases or disorders associated withglucocerebrosidase activity, including neurological diseases anddisorders such as Gaucher's disease and Parkinson's disease. Thedisclosed small molecules also may comprise fluorophores or may beconjugated to fluorophores to generate fluorescent probes. Thefluorescent probes contemplated herein may exhibit fluorescencepolarization and may be utilized in high throughput screening methods toidentify novel modulators of glucocerebrosidase.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1. Structures of GCase inhibitors.

FIG. 2. Rational design of a new series of potent quinazolineinhibitors.

FIG. 3. Fluorescent thermal shift analysis of selected compounds.Compound 9a, 9b, 11d, 11f, 11g, and IFG showed their ability tostabilize wild-type GCase in a dose-dependent manner. Data represent theresults of three independent experiments performed with three replicatesper sample.

FIG. 4. Selectivity of inhibitor 11g with related hydrolases. 11g wastested on GCase, acid α-glucosidase (GAA), and α-galactosidase A (GLA).Data represent the results of three independent experiments performedwith three replicates per sample.

FIG. 5. Lineweaver-Burk plots of the enzyme kinetics of GCase inhibitors(A) 4 and (B) 11g. Each inhibitor was tested in triplicate in twoindependent assays at the concentrations shown in the legend box of eachgraph, with (∘) indicating the absence of inhibitor. (A) Compounds 4 and(B) Compound 11g showed an increase in K_(m) and a decrease in V_(max),indicating linear mixed inhibition.

FIG. 6. Inhibitors of GCase increase GCase protein levels and activityin Gaucher's disease patient fibroblasts. (A) Western blot of N370Sfibroblast treated with GCase inhibitors 11d, 11f, 11g or IFG for 3days. (B) Statistical analysis for Western blot of N370S fibroblastafter inhibitors and IFG treatment. We used the GAPDH signal tonormalize the GCase signal, and a DMSO treated sample as control (100%).(C) GCase activity assay for N370S fibroblast after 11g and IFG 3-daytreatment. N=3 independent experiments. One-tail T-test * means p<0.05.

DETAILED DESCRIPTION

The disclosed subject matter further may be described utilizing terms asdefined below.

Unless otherwise specified or indicated by context, the terms “a”, “an”,and “the” mean “one or more.” For example, “a modulator ofglucocerebrosidase activity” should be interpreted to mean “one or moremodulators of glucocerebrosidase activity.”

As used herein, “about”, “approximately,” “substantially,” and“significantly” will be understood by persons of ordinary skill in theart and will vary to some extent on the context in which they are used.If there are uses of the term which are not clear to persons of ordinaryskill in the art given the context in which it is used, “about” and“approximately” will mean plus or minus ≤10% of the particular term and“substantially” and “significantly” will mean plus or minus >10% of theparticular term.

As used herein, the terms “include” and “including” have the samemeaning as the terms “comprise” and “comprising.” The terms “comprise”and “comprising” should be interpreted as being “open” transitionalterms that permit the inclusion of additional components further tothose components recited in the claims. The terms “consist” and“consisting of” should be interpreted as being “closed” transitionalterms that do not permit the inclusion of additional components otherthan the components recited in the claims. The term “consistingessentially of” should be interpreted to be partially closed andallowing the inclusion only of additional components that do notfundamentally alter the nature of the claimed subject matter.

The terms “subject,” “patient,” and “individual” may be usedinterchangeably herein. A subject may be a human subject. A subject mayrefer to a human subject having or at risk for acquiring a disease ordisorder that is associated with aberrant glucocerebrosidase activity.As used herein, the term “aberrant” means higher or lower activityrelative to a normal healthy subject. In specific embodiments, a subjectexhibiting aberrant glucocerebrosidase have or be at risk for acquiringa neurological disease or disorder, including degenerative neurologicaldiseases or disorders such as Gaucher's disease and Parkinson's diseaseassociated with aberrant glucocerebrosidase activity.

As used herein, the phrase “effective amount” shall mean that drugdosage that provides the specific pharmacological response for which thedrug is administered in a significant number of patients in need of suchtreatment. An effective amount of a drug that is administered to aparticular patient in a particular instance will not always be effectivein treating the conditions/diseases described herein, even though suchdosage is deemed to be a therapeutically effective amount by those ofskill in the art.

The term “alkyl” as contemplated herein includes a straight-chain orbranched alkyl radical in all of its isomeric forms. Similarly, the term“alkoxy” refers to any alkyl radical which is attached via an oxygenatom (i.e., a radical represented as “alkyl-O—*”). As used herein, anasterick “*” is used to designate the point of attachment for anyradical group or substituent group.

As used herein, the term “modulate” means decreasing or inhibitingactivity and/or increasing or augmenting activity. For example,modulating glucocerebrosidase activity means decreasing or inhibitingglucocerebrosidase activity and/or increasing or augmentingglucocerebrosidase activity. The compounds disclosed herein may beadministered to modulate glucocerebrosidase activity for example, as aninhibitor, a chaperone, or an activator.

The compounds disclosed herein may be referred to as “2-substituted,N-substituted quinazoline compounds” or “substituted quinazolinecompounds.” The compounds or salt or solvates thereof may be describedas having a Formula I as follows:

wherein:

R¹ is hydrogen or C1-C6 alkyl;

n is 0, 1, 2, 3, or 4; and

R² is hydrogen, a C1-C10 alkyl group (straight chain or branched), aC3-C8 cycloalkyl group, a saturated or unsaturated homocycle orheterocycle group comprising one 5- or 6-membered ring or comprising twoor three fused 5- or 6-membered rings, a phenoxy group, a C1-C6-branchedor straight chain alkyl-phenoxy group, a 2,3-dihydro-1H-indenyl group, a1,2,3,4-tetrahydro-naphthalenyl group, a C2-C10 alkenyl group (straightchain or branched), a C2-C10 alkynyl group, a polyethylene oxide group(e.g., PEG), a pyridinoxy group (e.g., 2-, 3-, or 4-pyridinoxy), anindoloxy group (e.g., 1H-indol-4-yl-oxy), a benzofuranoxy group (e.g.,benzofuran-4-yl-oxy), or R² has a formula

wherein R⁸ is halo or R⁸ has a formula selected from

p is 1-10 and R⁹ is amino or R⁹ has a

formula selected from

wherein R¹⁰ is H, C1-C1-alkyl (straight chain or branched), or asuccinimidyl group (e.g., N-succinimidyl);

R² optionally is substituted at one or more positions with a C1-C6 alkylgroup, a C1-C6 alkoxy group, a halo group, a phenyl group, a benzylgroup, an amino group, a hydroxyl group, a tert-butyloxycarbonyl (BOC)group, a sulfonylmethylphenyl group, a2,3-dihydro-1,4-benzodioxine-2-carbaldehyde group, a2,3-dihydromethyl-1,4-benzodioxin group, an imidazole group, apiperazine group, a 1-methylpiperazine group, a4-piperazin-1-yl-benzaldehyde group, a4-(4-methylpiperazin-1-yl)benzaldehyde group, or an azide group; or

where n is 0, R¹ and R² together form a heterocycle comprising one, two,or three 5- or 6-membered rings (e.g.,N-2,3,4,9-tetrahydro-pyrido[3,4-b]indole, tryptolinyl, or2,3,4,5-tetrahydro-benzo[f][1,4]oxazepine);

optionally, at least one of R¹ and R² is not hydrogen; and

R³ is pyridinyl (for example, 2-yl, 3-yl, or 4-yl), phenyl, thiophenyl(for example 2-yl or 3-yl), halo, furanyl (for example 2-yl or 3-yl),pyrimidinyl (for example 2-yl, 4-yl, or 5-yl), and R³ optionally issubstituted at one or more positions with C1-C6 alkyl, halo, amino, orR³ has a formula,

wherein R⁴ is amino, or R⁴ has a formula

wherein R⁵ is —CH₂— or —O—CH₂—CH₂—, and m is 0-4,

R⁶ is H or R⁶ has a formula

wherein R⁷ is H, —OH, C1-C6 alkyl (which may be straight chain orbranched), or C1-C6 alkoxy (which may be straight chain or branched).

In some embodiments, R² is selected from the group consisting of acyclohexylaminyl group, an N-alkyl cyclohexylaminyl group, anN,N-dialkyl cyclohexylaminyl group, a 7-azabicyclo[2.2.1]heptanyl group,a piperidinyl group, a tetrahydropyranyl group, a 1,4-dioxanyl group, adihydrobenzo[1,4]dioxanyl group, a pyridinyl group, a pyrimidinyl group,a pyrazinyl group, a quinoxalinyl group, a 1,3-benzodioxolyl group, a(2h)tetrahydroisoquinolinyl group, an isoindolinyl group, anN-methylisoindolinyl group, a 1,3-benzothiazolyl group, a1,3-benzodiazolyl group, a naphthalenyl group, a 1,3-benzoxazolyl group,a 1,4-benzodioxanyl group, 3,4-Dihydro-2H-1-benzopyranyl group, a2,1,3-benzothiadiazolyl group, a 1,2,4-oxadiazolyl group,3-isobutyl-1,2,4-oxadiazol-5-yl group, a thiazolyl group, atetrahydrohydronaphthalenyl group, a 2,3-dihydro-1H-indenyl group, anindolyl group, a pyrrolidinyl group, an N-methylpyrrolidinyl group, abicyclo[2.2.1]heptanyl group (i.e., norbornanyl), and atricyclo[3.3.1.1(3,7)]decanyl group (i.e., adamantanyl), andalkyl-phenoxy group (e.g., ethan-2-yl-phenoxy, propan-2-yl-phenoxy,isopropyl-phenoxy), a 2,3-dihydro-1H-indenyl group, a1,2,3,4-tetrahydro-naphthalenyl group, a C2-C10 alkenyl group (straightchain or branched), a C2-C10 alkynyl group, a polyethylene oxide group(e.g., PEG), a pyridinoxy group (e.g., 2-, 3-, or 4-pyridinoxy), anindoloxy group (e.g., 1H-indol-4-yl-oxy), or a benzofuranoxy group(e.g., benzofuran-4-yl-oxy). 3,4-Dihydro-2H-1-benzopyran

In other embodiments, R² is selected from the group consisting of

where the asterick (*) designates the point of attachment of R² to thealkyl linker (CH₂)_(n) or the point of attachment of R² to the pendantnitrogen of the quinazoline moiety where n is 0.

In some embodiments, R¹ and R² together may form a heterocycle with thependant nitrogen atom of the quinazoline moiety (e.g., where n is 0 andR¹ and R² are directed bonded to the pendant 4-carbon nitrogen atom ofthe quinazoline moiety). The heterocycle thus formed may comprise one 5-or 6-membered ring or may comprise two or three fused 5- or 6-memberedrings, for example, where R¹ and R² are selected from the groupconsisting of

where the asterick (*) designates the point of attachment of R¹ and R²to the pendant nitrogen atom of the quinazoline moiety.

In some embodiments, R is selected from the group consisting of

In some embodiments, the disclosed compounds may be conjugated to biotin(e.g., via the R³ constituent optionally via a linker between biotin andthe R³ constituent). In other embodiments, the disclosed compounds maybe conjugated to a solid support such as an agarose bead (e.g., via theR³ constituent optionally via a linker between the solid support and theR³ constituent).

In other embodiments, the disclosed compounds may comprise or may beconjugated to a fluorophore such as rhodamine or fluorescein. In someembodiments of the disclosed compounds, any of substituents R¹, R², andR³ may comprise or may be conjugated to a fluorophore (e.g., via the R³constituent optionally via a linker between the fluorophore and the R³constituent), including fluorophores suitable for use in fluorescencepolarization assays. As used herein, a “fluorophore” is a chemical groupthat can be excited (e.g., by light or a chemical reaction) to emitfluorescence. Some suitable fluorophores may be excited by light to emitphosphorescence. As used herein, a “dye” may include a fluorophore. Thedithio compounds described herein may include fluorophore selected frombut not limited to: 1,5 IAEDANS; 1,8-ANS; 4-Methylumbelliferone;5-carboxy-2,7-dichlorofluorescein; 5-Carboxyfluorescein (5-FAM);5-Carboxytetramethylrhodamine (5-TAMRA); 5-FAM (5-Carboxyfluorescein);5-HAT (Hydroxy Tryptamine); 5-Hydroxy Tryptamine (HAT); 5-ROX(carboxy-X-rhodamine); 5-TAMRA (5-Carboxytetramethylrhodamine);6-Carboxyrhodamine 6G; 6-CR 6G; 6-JOE; 7-Amino-4-methylcoumarin;7-Aminoactinomycin D (7-AAD); 7-Hydroxy-4-methylcoumarin;9-Amino-6-chloro-2-methoxyacridine; ABQ; Acid Fuchsin; ACMA(9-Amino-6-chloro-2-methoxyacridine); Acridine Orange; Acridine Red;Acridine Yellow; Acriflavin; Acriflavin Feulgen SITSA; Alexa Fluor 350™;Alexa Fluor 430™; Alexa Fluor 488™; Alexa Fluor 532™; Alexa Fluor 546™;Alexa Fluor 568™; Alexa Fluor 594™; Alexa Fluor 633™; Alexa Fluor 647™;Alexa Fluor 660™; Alexa Fluor 680™; Alizarin Complexon; Alizarin Red;Allophycocyanin (APC); AMC; AMCA-S; AMCA (Aminomethylcoumarin); AMCA-X;Aminoactinomycin D; Aminocoumarin; Aminomethylcoumarin (AMCA); AnilinBlue; Anthrocyl stearate; APC (Allophycocyanin); APC-Cy7; APTS; AstrazonBrilliant Red 4G; Astrazon Orange R; Astrazon Red 6B; Astrazon Yellow 7GLL; Atabrine; ATTO-TAG™ CBQCA; ATTO-TAG™ FQ; Auramine; Aurophosphine G;Aurophosphine; BAO 9 (Bisaminophenyloxadiazole); Berberine Sulphate;Beta Lactamase; BFP blue shifted GFP (Y66H); Blue Fluorescent Protein;BFP/GFP FRET; Bimane; Bisbenzamide; Bisbenzimide (Hoechst); BlancophorFFG; Blancophor SV; BOBO™-1; BOBO™-3; Bodipy 492/515; Bodipy 493/503;Bodipy 500/510; Bodipy 505/515; Bodipy 530/550; Bodipy 542/563; Bodipy558/568; Bodipy 564/570; Bodipy 576/589; Bodipy 581/591; Bodipy630/650-X; Bodipy 650/665-X; Bodipy 665/676; Bodipy FL; Bodipy FL ATP;Bodipy Fl-Ceramide; Bodipy R6G SE; Bodipy TMR; Bodipy TMR-X conjugate;Bodipy TMR-X, SE; Bodipy TR; Bodipy TR ATP; Bodipy TR-X SE; BO-PRO™-1;BO-PRO™-3; Brilliant Sulphoflavin FF; Calcein; Calcein Blue; CalciumCrimson™; Calcium Green; Calcium Orange; Calcofluor White;Carboxy-X-rhodamine (5-ROX); Cascade Blue™; Cascade Yellow;Catecholamine; CCF2 (GeneBlazer); CFDA; CFP—Cyan Fluorescent Protein;CFP/YFP FRET; Chlorophyll; Chromomycin A; CL-NERF (Ratio Dye, pH);CMFDA; Coelenterazine f; Coelenterazine fcp; Coelenterazine h;Coelenterazine hcp; Coelenterazine ip; Coelenterazine n; CoelenterazineO; Coumarin Phalloidin; C-phycocyanine; CPM Methylcoumarin; CTC; CTCFormazan; Cy2™; Cy3.1 8; Cy3.5™; Cy3™; Cy5.1 8; Cy5.5™; Cy5™; Cy7™; CyanGFP; cyclic AMP Fluorosensor (FiCRhR); Dabcyl; Dansyl; Dansyl Amine;Dansyl Cadaverine; Dansyl Chloride; Dansyl DHPE; Dansyl fluoride; DAPI;Dapoxyl; Dapoxyl 2; Dapoxyl 3; DCFDA; DCFH (DichlorodihydrofluoresceinDiacetate); DDAO; DHR (Dihydorhodamine 123); Di-4-ANEPPS; Di-8-ANEPPS(non-ratio); DiA (4-Di-16-ASP); Dichlorodihydrofluorescein Diacetate(DCFH); DiD—Lipophilic Tracer; DiD (DiIC18(5)); DIDS; Dihydorhodamine123 (DHR); DiI (DiIC18(3)); Dinitrophenol; DiO (DiOC18(3)); DiR; DiR(DiIC18(7)); DNP; Dopamine; DsRed; DTAF; DY-630-NHS; DY-635-NHS; EBFP;ECFP; EGFP; ELF 97; Eosin; Erythrosin; Erythrosin ITC; Ethidium Bromide;Ethidium homodimer-1 (EthD-1); Euchrysin; EukoLight; Europium (III)chloride; EYFP; Fast Blue; FDA; Feulgen (Pararosaniline); FITC; FlazoOrange; Fluo-3; Fluo-4; Fluorescein (FITC); Fluorescein Diacetate;Fluoro-Emerald; Fluoro-Gold (Hydroxystilbamidine); Fluor-Ruby; FluorX;FM 1-43™; FM 4-46; Fura Red™; Fura Red™/Fluo-3; Fura-2; Fura-2/BCECF;Genacryl Brilliant Red B; Genacryl Brilliant Yellow 10GF; Genacryl Pink3G; Genacryl Yellow 5GF; GeneBlazer (CCF2); GFP (S65T); GFP red shifted(rsGFP); GFP wild type, non-UV excitation (wtGFP); GFP wild type, UVexcitation (wtGFP); GFPuv; Gloxalic Acid; Granular Blue;Haematoporphyrin; Hoechst 33258; Hoechst 33342; Hoechst 34580; HPTS;Hydroxycoumarin; Hydroxystilbamidine (FluoroGold); Hydroxytryptamine;Indo-1; Indodicarbocyanine (DiD); Indotricarbocyanine (DiR); IntrawhiteCf; JC-1; JO-JO-1; JO-PRO-1; Laurodan; LDS 751 (DNA); LDS 751 (RNA);Leucophor PAF; Leucophor SF; Leucophor WS; Lissamine Rhodamine;Lissamine Rhodamine B; Calcein/Ethidium homodimer; LOLO-1; LO-PRO-1;Lucifer Yellow; Lyso Tracker Blue; Lyso Tracker Blue-White; Lyso TrackerGreen; Lyso Tracker Red; Lyso Tracker Yellow; LysoSensor Blue;LysoSensor Green; LysoSensor Yellow/Blue; Mag Green; Magdala Red(Phloxin B); Mag-Fura Red; Mag-Fura-2; Mag-Fura-5; Mag-Indo-1; MagnesiumGreen; Magnesium Orange; Malachite Green; Marina Blue; Maxilon BrilliantFlavin 10 GFF; Maxilon Brilliant Flavin 8 GFF; Merocyanin;Methoxycoumarin; Mitotracker Green FM; Mitotracker Orange; MitotrackerRed; Mitramycin; Monobromobimane; Monobromobimane (mBBr-GSH);Monochlorobimane; MPS (Methyl Green Pyronine Stilbene); NBD; NBD Amine;Nile Red; Nitrobenzoxadidole; Noradrenaline; Nuclear Fast Red; NuclearYellow; Nylosan Brilliant Iavin E8G; Oregon Green; Oregon Green 488-X;Oregon Green™; Oregon Green™ 488; Oregon Green™ 500; Oregon Green™ 514;Pacific Blue; Pararosaniline (Feulgen); PBFI; PE-Cy5; PE-Cy7; PerCP;PerCP-Cy5.5; PE-TexasRed [Red 613]; Phloxin B (Magdala Red); PhorwiteAR; Phorwite BKL; Phorwite Rev; Phorwite RPA; Phosphine 3R;Phycoerythrin B [PE]; Phycoerythrin R [PE]; PKH26 (Sigma); PKH67; PMIA;Pontochrome Blue Black; POPO-1; POPO-3; PO-PRO-1; PO-PRO-3; Primuline;Procion Yellow; Propidium lodid (PI); PyMPO; Pyrene; Pyronine; PyronineB; Pyrozal Brilliant Flavin 7GF; QSY 7; Quinacrine Mustard; Red 613[PE-TexasRed]; Resorufin; RH 414; Rhod-2; Rhodamine; Rhodamine 110;Rhodamine 123; Rhodamine 5 GLD; Rhodamine 6G; Rhodamine B; Rhodamine B200; Rhodamine B extra; Rhodamine BB; Rhodamine BG; Rhodamine Green;Rhodamine Phallicidine; Rhodamine Phalloidine; Rhodamine Red; RhodamineWT; Rose Bengal; R-phycocyanine; R-phycoerythrin (PE); RsGFP; S65A;S65C; S65L; S65T; Sapphire GFP; SBFI; Serotonin; Sevron Brilliant Red2B; Sevron Brilliant Red 4G; Sevron Brilliant Red B; Sevron Orange;Sevron Yellow L; sgBFP™; sgBFP™ (super glow BFP); sgGFP™; sgGFP™ (superglow GFP); SITS; SITS (Primuline); SITS (Stilbene IsothiosulphonicAcid); SNAFL calcein; SNAFL-1; SNAFL-2; SNARF calcein; SNARFi; SodiumGreen; SpectrumAqua; SpectrumGreen; SpectrumOrange; Spectrum Red; SPQ(6-methoxy-N-(3-sulfopropyl)quinolinium); Stilbene; Sulphorhodamine Bcan C; Sulphorhodamine G Extra; SYTO 11; SYTO 12; SYTO 13; SYTO 14; SYTO15; SYTO 16; SYTO 17; SYTO 18; SYTO 20; SYTO 21; SYTO 22; SYTO 23; SYTO24; SYTO 25; SYTO 40; SYTO 41; SYTO 42; SYTO 43; SYTO 44; SYTO 45; SYTO59; SYTO 60; SYTO 61; SYTO 62; SYTO 63; SYTO 64; SYTO 80; SYTO 81; SYTO82; SYTO 83; SYTO 84; SYTO 85; SYTOX Blue; SYTOX Green; SYTOX Orange;Tetracycline; Tetramethylrhodamine (TRITC); Texas Red™; Texas Red-X™conjugate; Thiadicarbocyanine (DiSC3); Thiazine Red R; Thiazole Orange;Thioflavin 5; Thioflavin 5; Thioflavin TCN; Thiolyte; Thiozole Orange;Tinopol CBS (Calcofluor White); TMR; TO-PRO-1; TO-PRO-3; TO-PRO-5;TOTO-1; TOTO-3; TriColor (PE-Cy5); TRITCTetramethylRodaminelsoThioCyanate; True Blue; TruRed; Ultralite; UranineB; Uvitex SFC; wt GFP; WW 781; X-Rhodamine; XRITC; Xylene Orange; Y66F;Y66H; Y66W; Yellow GFP; YFP; YO-PRO-1; YO-PRO-3; YOYO-1; and YOYO-3. Asused herein, a “fluorophore” may include a salt of the fluorophore.

The disclosed compounds may include two substituted quinazoline groupsconjugated via a linker. Compounds that include two substitutedquinazoline groups conjugated via a linker between the pendant 4-carbonnitrogens of the quinazoline groups may be illustrated as follows:

In some embodiments, the disclosed compounds having two substitutedquinazoline groups conjugated via a linker may be described as having aFormula II as follows:

wherein R¹ and R³ are as defined for Formula I above, n=1-10, and thealkyl group ((CH₂)_(n)) serves as a linker between the two substitutedquinazoline groups.

In some embodiments, the disclosed compounds having two substitutedquinazoline groups conjugated via a linker may be described as having aFormula III as follows:

wherein R¹ and R³ are as defined for Formula I above, n=1-10, and thepoly ethylene oxide group ((OCH₂CH₂)_(n)) serves as a linker between thetwo substituted quinazoline groups.

In some embodiments, the disclosed compounds having two substitutedquinazoline groups conjugated via a linker may be described as having aFormula IV as follows:

wherein R¹ and R³ are as defined for Formula I above, n=1-10, and thecompound has a phenoxy alkynyl poly ethylene oxide linker.

In some embodiments, the disclosed compounds having two substitutedquinazoline groups conjugated via a linker may be described as having aFormula V as follows:

wherein R¹ and R³ are as defined for Formula I above, n=0-8, and thecompound has a diphenoxy alkynyl linker.

In some embodiments, the disclosed compounds having two substitutedquinazoline groups conjugated via a linker may be described as having aFormula VI as follows:

wherein R¹ and R³ are as defined for Formula I above, n=1-10, and thecompound has a di-2,3-dihydro-1H-indenyl alkynyl linker.

The compounds disclosed herein preferably modulate activity ofglucocerebrosidase. Modulation may include inhibiting or decreasingglucocerebrosidase activity. Modulation also may include activating orincreasing glucocerebrosidase activity. Glucocerebrosidase activity maybe assessed utilizing methods known in the art and the methods disclosedherein, including the methods disclosed in the Examples provided herein.In some embodiments, the compounds decrease or increaseglucocerebrosidase activity relative to a control (e.g., by at leastabout 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or more). In otherembodiments, an AC₅₀ value or IC₅₀ value for the compound in regard toinhibition or activation of glucocerebrosidase may be determined andpreferably the compound has an AC₅₀ or IC₅₀ value of less than about 10μM, 5 μM, 1 μM, 0.5 μM 0.01 μM, 0.05 μM, or 0.001 μM.

The compounds disclosed herein (e.g., compounds of Formula I, II, III,IV, V, or VI) may have several chiral centers, and stereoisomers,epimers, and enantiomers are contemplated. The compounds may beoptically pure with respect to one or more chiral centers (e.g., some orall of the chiral centers may be completely in the S configuration; someor all of the chiral centers may be completely in the R configuration;etc.). Additionally or alternatively, one or more of the chiral centersmay be present as a mixture of configurations (e.g., a racemic oranother mixture of the R configuration and the S configuration).Compositions comprising substantially purified stereoisomers, epimers,or enantiomers, or analogs or derivatives thereof are contemplatedherein (e.g., a composition comprising at least about 90%, 95%, or 99%pure stereoisomer, epimer, or enantiomer.) As used herein, formulaewhich do not specify the orientation at one or more chiral centers aremeant to encompass all orientations and mixtures thereof.

The compounds employed in the compositions and methods disclosed hereinmay be administered as pharmaceutical compositions and, therefore,pharmaceutical compositions incorporating the compounds are consideredto be embodiments of the compositions disclosed herein. Suchcompositions may take any physical form which is pharmaceuticallyacceptable; illustratively, they can be orally administeredpharmaceutical compositions. Such pharmaceutical compositions contain aneffective amount of a disclosed compound, which effective amount isrelated to the daily dose of the compound to be administered. Eachdosage unit may contain the daily dose of a given compound or eachdosage unit may contain a fraction of the daily dose, such as one-halfor one-third of the dose. The amount of each compound to be contained ineach dosage unit can depend, in part, on the identity of the particularcompound chosen for the therapy and other factors, such as theindication for which it is given. The pharmaceutical compositionsdisclosed herein may be formulated so as to provide quick, sustained, ordelayed release of the active ingredient after administration to thepatient by employing well known procedures.

The compounds for use according to the methods of disclosed herein maybe administered as a single compound or a combination of compounds. Forexample, a compound that modulates glucocerebrosidase activity may beadministered as a single compound or in combination with anothercompound that modulates glucocerebrosidase activity or that has adifferent pharmacological activity.

As indicated above, pharmaceutically acceptable salts of the compoundsare contemplated and also may be utilized in the disclosed methods. Theterm “pharmaceutically acceptable salt” as used herein, refers to saltsof the compounds which are substantially non-toxic to living organisms.Typical pharmaceutically acceptable salts include those salts preparedby reaction of the compounds as disclosed herein with a pharmaceuticallyacceptable mineral or organic acid or an organic or inorganic base. Suchsalts are known as acid addition and base addition salts. It will beappreciated by the skilled reader that most or all of the compounds asdisclosed herein are capable of forming salts and that the salt forms ofpharmaceuticals are commonly used, often because they are more readilycrystallized and purified than are the free acids or bases.

Acids commonly employed to form acid addition salts may includeinorganic acids such as hydrochloric acid, hydrobromic acid, hydroiodicacid, sulfuric acid, phosphoric acid, and the like, and organic acidssuch as p-toluenesulfonic, methanesulfonic acid, oxalic acid,p-bromophenylsulfonic acid, carbonic acid, succinic acid, citric acid,benzoic acid, acetic acid, and the like. Examples of suitablepharmaceutically acceptable salts may include the sulfate, pyrosulfate,bisulfate, sulfite, bisulfate, phosphate, monohydrogenphosphate,dihydrogenphosphate, metaphosphate, pyrophosphate, bromide, iodide,acetate, propionate, decanoate, caprylate, acrylate, formate,hydrochloride, dihydrochloride, isobutyrate, caproate, heptanoate,propiolate, oxalate, malonate, succinate, suberate, sebacate, fumarate,maleat-, butyne-. 1,4-dioate, hexyne-1,6-dioate, benzoate,chlorobenzoate, methylbenzoate, hydroxybenzoate, methoxybenzoate,phthalate, xylenesulfonate, phenylacetate, phenylpropionate,phenylbutyrate, citrate, lactate, alpha-hydroxybutyrate, glycolate,tartrate, methanesulfonate, propanesulfonate, naphthalene-1-sulfonate,naphthalene-2-sulfonate, mandelate, and the like.

Base addition salts include those derived from inorganic bases, such asammonium or alkali or alkaline earth metal hydroxides, carbonates,bicarbonates, and the like. Bases useful in preparing such salts includesodium hydroxide, potassium hydroxide, ammonium hydroxide, potassiumcarbonate, sodium carbonate, sodium bicarbonate, potassium bicarbonate,calcium hydroxide, calcium carbonate, and the like.

The particular counter-ion forming a part of any salt of a compounddisclosed herein is may not be critical to the activity of the compound,so long as the salt as a whole is pharmacologically acceptable and aslong as the counterion does not contribute undesired qualities to thesalt as a whole. Undesired qualities may include undesirably solubilityor toxicity.

Pharmaceutically acceptable esters and amides of the compounds can alsobe employed in the compositions and methods disclosed herein. Examplesof suitable esters include alkyl, aryl, and aralkyl esters, such asmethyl esters, ethyl esters, propyl esters, dodecyl esters, benzylesters, and the like. Examples of suitable amides include unsubstitutedamides, monosubstituted amides, and disubstituted amides, such as methylamide, dimethyl amide, methyl ethyl amide, and the like.

In addition, the methods disclosed herein may be practiced using solvateforms of the compounds or salts, esters, and/or amides, thereof. Solvateforms may include ethanol solvates, hydrates, and the like.

The pharmaceutical compositions may be utilized in methods of treating adisease or disorder associated glucocerebrosidase activity. For example,the pharmaceutical compositions may be utilized to treat patients havingor at risk for acquiring a neurological disease or disorder, includingdegenerative neurological diseases or disorders such as Gaucher'sdisease and Parkinson's disease. Suitable patients include, for examplemammals, such as humans and non-human primates (e.g., chimps) or othermammals (e.g., dogs, cats, horses, rats, and mice). Suitable humanpatients may include, for example, those who have previously beendetermined to be at risk of having or developing a neurological diseaseor disorder, including degenerative neurological diseases or disorderssuch as Gaucher's disease and Parkinson's disease.

As used herein, the terms “treating” or “to treat” each mean toalleviate symptoms, eliminate the causation of resultant symptoms eitheron a temporary or permanent basis, and/or to prevent or slow theappearance or to reverse the progression or severity of resultantsymptoms of the named disease or disorder. As such, the methodsdisclosed herein encompass both therapeutic and prophylacticadministration.

As used herein the term “effective amount” refers to the amount or doseof the compound, upon single or multiple dose administration to thesubject, which provides the desired effect in the subject underdiagnosis or treatment. The disclosed methods may include administeringan effective amount of the disclosed compounds (e.g., as present in apharmaceutical composition) for treating a disease or disorderassociated with superoxide dismutase mutations, including administeringan effective amount of a compound that inhibits expression of themutated form of superoxide dismutase.

An effective amount can be readily determined by the attendingdiagnostician, as one skilled in the art, by the use of known techniquesand by observing results obtained under analogous circumstances. Indetermining the effective amount or dose of compound administered, anumber of factors can be considered by the attending diagnostician, suchas: the species of the subject; its size, age, and general health; thedegree of involvement or the severity of the disease or disorderinvolved; the response of the individual subject; the particularcompound administered; the mode of administration; the bioavailabilitycharacteristics of the preparation administered; the dose regimenselected; the use of concomitant medication; and other relevantcircumstances.

A typical daily dose may contain from about 0.01 mg/kg to about 100mg/kg (such as from about 0.05 mg/kg to about 50 mg/kg and/or from about0.1 mg/kg to about 25 mg/kg) of each compound used in the present methodof treatment.

Compositions can be formulated in a unit dosage form, each dosagecontaining from about 1 to about 500 mg of each compound individually orin a single unit dosage form, such as from about 5 to about 300 mg, fromabout 10 to about 100 mg, and/or about 25 mg. The term “unit dosageform” refers to a physically discrete unit suitable as unitary dosagesfor a patient, each unit containing a predetermined quantity of activematerial calculated to produce the desired therapeutic effect, inassociation with a suitable pharmaceutical carrier, diluent, orexcipient.

Oral administration is an illustrative route of administering thecompounds employed in the compositions and methods disclosed herein.Other illustrative routes of administration include transdermal,percutaneous, intravenous, intramuscular, intranasal, buccal,intrathecal, intracerebral, or intrarectal routes. The route ofadministration may be varied in any way, limited by the physicalproperties of the compounds being employed and the convenience of thesubject and the caregiver.

As one skilled in the art will appreciate, suitable formulations includethose that are suitable for more than one route of administration. Forexample, the formulation can be one that is suitable for bothintrathecal and intracerebral administration. Alternatively, suitableformulations include those that are suitable for only one route ofadministration as well as those that are suitable for one or more routesof administration, but not suitable for one or more other routes ofadministration. For example, the formulation can be one that is suitablefor oral, transdermal, percutaneous, intravenous, intramuscular,intranasal, buccal, and/or intrathecal administration but not suitablefor intracerebral administration.

The inert ingredients and manner of formulation of the pharmaceuticalcompositions are conventional. The usual methods of formulation used inpharmaceutical science may be used here. All of the usual types ofcompositions may be used, including tablets, chewable tablets, capsules,solutions, parenteral solutions, intranasal sprays or powders, troches,suppositories, transdermal patches, and suspensions. In general,compositions contain from about 0.5% to about 50% of the compound intotal, depending on the desired doses and the type of composition to beused. The amount of the compound, however, is best defined as the“effective amount”, that is, the amount of the compound which providesthe desired dose to the patient in need of such treatment. The activityof the compounds employed in the compositions and methods disclosedherein are not believed to depend greatly on the nature of thecomposition, and, therefore, the compositions can be chosen andformulated primarily or solely for convenience and economy.

Capsules are prepared by mixing the compound with a suitable diluent andfilling the proper amount of the mixture in capsules. The usual diluentsinclude inert powdered substances (such as starches), powdered cellulose(especially crystalline and microcrystalline cellulose), sugars (such asfructose, mannitol and sucrose), grain flours, and similar ediblepowders.

Tablets are prepared by direct compression, by wet granulation, or bydry granulation. Their formulations usually incorporate diluents,binders, lubricants, and disintegrators (in addition to the compounds).Typical diluents include, for example, various types of starch, lactose,mannitol, kaolin, calcium phosphate or sulfate, inorganic salts (such assodium chloride), and powdered sugar. Powdered cellulose derivatives canalso be used. Typical tablet binders include substances such as starch,gelatin, and sugars (e.g., lactose, fructose, glucose, and the like).Natural and synthetic gums can also be used, including acacia,alginates, methylcellulose, polyvinylpyrrolidine, and the like.Polyethylene glycol, ethylcellulose, and waxes can also serve asbinders.

Tablets can be coated with sugar, e.g., as a flavor enhancer andsealant. The compounds also may be formulated as chewable tablets, byusing large amounts of pleasant-tasting substances, such as mannitol, inthe formulation. Instantly dissolving tablet-like formulations can alsobe employed, for example, to assure that the patient consumes the dosageform and to avoid the difficulty that some patients experience inswallowing solid objects.

A lubricant can be used in the tablet formulation to prevent the tabletand punches from sticking in the die. The lubricant can be chosen fromsuch slippery solids as talc, magnesium and calcium stearate, stearicacid, and hydrogenated vegetable oils.

Tablets can also contain disintegrators. Disintegrators are substancesthat swell when wetted to break up the tablet and release the compound.They include starches, clays, celluloses, algins, and gums. As furtherillustration, corn and potato starches, methylcellulose, agar,bentonite, wood cellulose, powdered natural sponge, cation-exchangeresins, alginic acid, guar gum, citrus pulp, sodium lauryl sulfate, andcarboxymethylcellulose can be used.

Compositions can be formulated as enteric formulations, for example, toprotect the active ingredient from the strongly acid contents of thestomach. Such formulations can be created by coating a solid dosage formwith a film of a polymer which is insoluble in acid environments andsoluble in basic environments. Illustrative films include celluloseacetate phthalate, polyvinyl acetate phthalate, hydroxypropylmethylcellulose phthalate, and hydroxypropyl methylcellulose acetatesuccinate.

When it is desired to administer the compound as a suppository,conventional bases can be used. Illustratively, cocoa butter is atraditional suppository base. The cocoa butter can be modified byaddition of waxes to raise its melting point slightly. Water-misciblesuppository bases, such as polyethylene glycols of various molecularweights, can also be used in suppository formulations.

Transdermal patches can also be used to deliver the compounds.Transdermal patches can include a resinous composition in which thecompound will dissolve or partially dissolve; and a film which protectsthe composition and which holds the resinous composition in contact withthe skin. Other, more complicated patch compositions can also be used,such as those having a membrane pierced with a plurality of poresthrough which the drugs are pumped by osmotic action.

As one skilled in the art will also appreciate, the formulation can beprepared with materials (e.g., actives excipients, carriers (such ascyclodextrins), diluents, etc.) having properties (e.g., purity) thatrender the formulation suitable for administration to humans.Alternatively, the formulation can be prepared with materials havingpurity and/or other properties that render the formulation suitable foradministration to non-human subjects, but not suitable foradministration to humans.

The compounds disclosed in the present application may function asactivators of glucocerebrosidase. For example, a compound disclosedherein may be reacted with glucocerebrosidase to prepare an activatedglucocerebrosidase that is covalent attached to the compound. Theactivated glucocerebrosidase thusly formed may be prepared as apharmaceutical composition to treat and/or prevent a disease or disorderthat is associated with glucocerebrosidase activity as in enzymereplacement therapy, which is known in the art.

The following list of formulations is illustrative. These illustrativeformulations may be suitable for preparing pharmaceutical compositionsthat include the disclosed compounds as “active ingredients.” Thefollowing list of formulations is illustrative and should not beinterpreted as limiting the present disclosure or claims in any way:

Formulation 1

Hard gelatin capsules are prepared using the following ingredients:

Quantity (mg/capsule) Active Ingredient 250 Starch, dried 200 Magnesiumstearate 10 Total 460 mgThe above ingredients are mixed and filled into hard gelatin capsules in460 mg quantities.

Formulation 2

Quantity (mg/tablet) Active Ingredient 250 Cellulose, microcrystalline400 Silicon dioxide, fumed 10 Stearic acid 5 Total 665 mgThe components are blended and compressed to form tablets each weighing665 mg.

Formulation 3

An aerosol solution is prepared containing the following components:

Weight % Active Ingredient 0.25 Ethanol 29.75 Propellant 22(chlorodifluoromethane) 70.00 Total 100.00The active compound is mixed with ethanol and the mixture added to aportion of the Propellant 22, cooled to ⁻30° C. and transferred to afilling device. The required amount is then fed to a stainless steelcontainer and diluted with the remainder of the propellant. The valveunits are then fitted to the container.

Formulation 4

Tablets each containing 60 mg of active ingredient are made as follows:

Active Ingredient   60 mg Starch   45 mg Microcrystalline cellulose   35mg Polyvinylpyrrolidone    4 mg Sodium carboxymethyl starch  4.5 mgMagnesium stearate  0.5 mg Talc    1 mg Total  150 mgThe active ingredient, starch, and cellulose are passed through a No. 45mesh U.S. sieve and mixed thoroughly. The solution ofpolyvinylpyrrolidone is mixed with the resultant powders which are thenpassed through a No. 14 mesh U.S. sieve. The granules so produced aredried at 50° C. and passed through a No. 18 mesh U.S. sieve. The sodiumcarboxymethyl starch, magnesium stearate, and talc, previously passedthrough a No. 60 mesh U.S. sieve, are then added to the granules which,after mixing, are compressed on a tablet machine to yield tablets eachweighing 150 mg.

Formulation 5

Capsules, each containing 80 mg medicament, are made as follows:

Active Ingredient  80 mg Starch  59 mg Microcrystalline cellulose  59 mgMagnesium stearate   2 mg Total 200 mgThe active ingredient, cellulose, starch, and magnesium stearate areblended, passed through a No. 45 sieve, and filled into hard gelatincapsules in 200 mg quantities.

Formulation 6

Suppositories each containing 225 mg of active ingredient may be made asfollows:

Active Ingredient   225 mg Saturated fatty acid glycerides 2,000 mgTotal 2,225 mgThe active ingredient is passed through a No. 60 mesh U.S. sieve andsuspended in the saturated fatty acid glycerides previously melted usingthe minimum heat necessary. The mixture is then poured into asuppository mold of nominal 2 g capacity and allowed to cool.

Formulation 7

Suspensions each containing 50 mg of medicament per 5 ml dose are madeas follows:

Active Ingredient   50 mg Sodium carboxymethyl cellulose   50 mg Syrup1.25 ml Benzoic acid solution 0.10 ml Flavor q.v. Color q.v. Purifiedwater to total   5 mlThe medicament is passed through a No. 45 mesh U.S. sieve and mixed withthe sodium carboxymethyl, cellulose and syrup to form a smooth paste.The benzoic acid solution, flavor, and color are diluted with some ofthe water and added with stirring. Sufficient water is then added toproduce the required volume.

Formulation 8

An intravenous formulation containing 100 mg of medicament per 5 ml dosecan be prepared as follows:

Active Ingredient 100 mg Mannitol 100 mg 5N Sodium hydroxide 200 mlPurified water to total  5 ml

EXAMPLES

The followings Examples are illustrative only and are not intended tolimit the scope of the claimed subject matter.

Example 1—Synthesis of Substituted Quinazoline Compounds

Compounds were prepared using Scheme 1 and Scheme 2 illustrated below:

Preparation of(S)-2-(pyridin-3-yl)-N-(1,2,3,4-tetrahydronaphthalen-2-yl)quinazolin-4-amine(1)

Method A

a. Preparation of 4-chloro-2-(pyridin-3-yl)quinazoline. To a solution of2-aminobenzonitrile (5.90 g, 50 mmol) in sulfolane (20 mL) was addednicotinoyl chloride hydrochloride (12.0 g, 67.4 mmol), and the mixturewas stirred at 100° C. for 16 hr. PCl₅ (18.2 g, 87.5 mmol) was added inone portion, and stirred at 100° C. for 10 hr. The mixture was cooled toroom temperature, and carefully poured into 400 mL saturated sodiumbicarbonate solution cooling with ice bath. The solid was filtered,washed with water, dried, and purified by flash chromatography to give5.50 g (46%) light-yellow solid.

¹H NMR (400 MHz, CDCl₃) δ 9.76 (d, J=1.3 Hz, 1H), 8.82 (dt, J=8.0, 1.9Hz, 1H), 8.73 (dd, J=4.7, 1.4 Hz, 1H), 8.26 (dd, J=8.4, 0.8 Hz, 1H),8.10 (d, J=8.4 Hz, 1H), 7.95 (ddd, J=8.4, 7.0, 1.4 Hz, 1H), 7.69 (ddd,J=8.2, 7.0, 1.1 Hz, 1H), 7.44 (dd, J=7.5, 4.8 Hz, 1H). ¹³C NMR: (100MHz, CDCl₃) δ (ppm): 162.9, 158.3, 151.8, 151.7, 150.3, 136.1, 135.2,132.4, 129.1, 128.9, 126.0, 123.5, 122.8.

b. Preparation ofN-(2,3-dihydro-1H-inden-2-yl)-2-(pyridin-3-yl)quinazolin-4-amine (1). Amixture of 4-chloro-2-(pyridin-3-yl)quinazoline (120 mg, 0.5 mmol),2,3-dihydro-1H-inden-2-amine (67 mg, 0.5 mmol), and potassium carbonate(69 mg, 0.5 mmol) in DMF (3 mL) was stirred at room temperature for 5hr. Water (20 mL) was added, and the formed solid was filtered, washedwith water, dried to give 150 mg (73%) off-white solid.

¹H NMR (500 MHz, CDCl₃) δ 9.78 (d, J=1.7 Hz, 1H), 8.84 (dd, J=7.9, 1.7Hz, 1H), 8.69 (d, J=4.7 Hz, 1H), 7.93 (d, J=8.3 Hz, 1H), 7.77-7.70 (m,1H), 7.68 (d, J=8.1 Hz, 1H), 7.47-7.37 (m, 2H), 7.32-7.27 (m, 2H),7.25-7.20 (m, 2H), 6.04 (s, 1H), 5.37-5.29 (m, 1H), 3.60 (dd, J=16.2,7.2 Hz, 2H), 3.08 (dd, J=16.2, 4.8 Hz, 2H). ¹³C NMR (125 MHz, CDCl₃) δ159.4, 158.6, 150.7, 150.3, 141.1, 135.8, 134.4, 132.9, 128.9, 127.0,126.0, 125.1, 123.3, 120.7, 113.9, 52.6, 40.3. ESI-MS m/z: 339 (M+H)⁺.

Method B

a. Preparation of2-chloro-N-(2,3-dihydro-1H-inden-2-yl)quinazolin-4-amine. A mixture of2,4-dichloroquinazoline (398 mg, 2.0 mmol), 2,3-dihydro-1H-inden-2-amine(266 mg, 2.0 mmol), and potassium carbonate (276 mg, 2.0 mmol) in DMF (5mL) was stirred at room temperature for 5 hr. Water (20 mL) was added,and the formed solid was filtered, washed with water, dried to give 390mg (66%) off-white solid.

¹H NMR (500 MHz, CDCl₃) δ 7.76 (d, J=8.2 Hz, 1H), 7.74-7.69 (m, 1H),7.60 (d, J=8.2 Hz, 1H), 7.41 (t, J=7.4 Hz, 1H), 7.30-7.26 (m, 2H),7.24-7.19 (m, 2H), 6.08 (d, J=6.7 Hz, 1H), 5.27-5.15 (m, 1H), 3.53 (dd,J=16.2, 7.0 Hz, 2H), 3.00 (dd, J=16.2, 4.0 Hz, 2H). ¹³C NMR (125 MHz,CDCl₃) δ 160.6, 157.8, 151.0, 140.7, 133.6, 128.0, 127.1, 126.2, 125.1,120.8, 113.3, 52.6, 40.2.

b. Preparation ofN-(2,3-dihydro-1H-inden-2-yl)-2-(pyridin-3-yl)quinazolin-4-amine (1). Amixture of 2-chloro-N-(2,3-dihydro-1H-inden-2-yl)quinazolin-4-amine (148mg, 0.5 mmol), 3-pyridinylboronic acid (62 mg, 0.5 mmol), Pd(PPh₃)₄ (58mg, 0.05 mmol), potassium carbonate (276 mg, 2.0 mmol) in Dioxane (10mL) and water (1.5 mL) was heated at 85° C. under argon atmosphere for16 hr. Water (5 mL) was added, and the mixture was extracted with EtOAc(25 mL×3). The combined organic phase was washed with brine (15 mL),dried (Na₂SO₄), filtered, evaporated, and purified with flashchromatography to give 132 mg (78%) off white solid.

Preparation of(S)—N-methyl-2-(pyridin-3-yl)-N-(1,2,3,4-tetrahydronaphthalen-2-yl)quinazolin-4-amine(2)

To a solution of(S)-2-(pyridin-3-yl)-N-(1,2,3,4-tetrahydronaphthalen-2-yl)quinazolin-4-amine(70 mg, 0.2 mmol) in DMF (3 mL) was added NaH (60%) (10 mg, 0.25 mmol)at room temperature, and stirred for 30 min. Methylene iodide (16 uL,0.25 mmol) was added to the mixture, and stirred overnight. Water (20mL) was added, and the formed solid was filtered, washed with water,dried to give 50 mg (69%) off-white solid.

Example 2—Glucocerebrosidase Activity Assay with Blue Substrate

The compounds in DMSO solution 0.5 μL/well were transferred to a black96-well plate. The final titration was 24 nM to 50 μM, 12concentrations, 2 times dilution. 33.5 μL of enzyme solution (7.5 nMfinal concentration) was transferred to the wells. After 5 min ofincubation at room temperature, the enzyme reaction was initiated by theaddition of 33 μL/well blue substrate. Final concentrations of the bluesubstrate (4MU-Glc) was 1.5 mM. The blue substrate reaction wasterminated by the addition of 33 μL/well stop solution (1 M NaOH and 1 Mglycine mixture, pH 10) after 30 min of incubation at 37° C. Thefluorescence was then measured in the Biotek Synergy H1 multi-mode platereader with Ex=365 nm and Em=440 nm.

Example 3—Fluorescence Polarization Assay

The fluorescent probe 3 (25 nL/well, 50 nM final concentration) wastransferred to a 384-well black plate using a Labcyte Echo 550 LiquidHandler system. The 25 μL/well enzyme dilutions with GCase enzymeactivity buffer were added to the plate, which was shaken at roomtemperature in dark for 20 min. The final titration was 5 nM to 10 μM,10 concentrations, 2 times dilution. The fluorescence polarization wasmeasured in Molecular Devices Analyst GT with Ex=535 nm and Em=580 nm, GFactor=1.05.

Example 4—Compound High Throughput Screening (HTS) by FluorescencePolarization

The enzyme in GCase enzyme activity buffer (25 μL/well) was added to a384-well black plate. The fluorescent probe 3 (25 nL/well, 50 nM finalconcentration) was transferred to a 384-well black plate using a LabcyteEcho 550 Liquid Handler system. Compounds in DMSO stock solution (50 nL)were transferred to the plate. The plate was shaken at room temperaturein dark for 20 min. The final concentration was 19.5 nM to 10 μM, 10concentrations, 2 times dilution. The fluorescence polarization wasmeasured in a Molecular Devices Analyst GT with Ex=535 nm and Em=580 nm,G Factor=1.05.

Example 5—Preparation of the Compound-Activated Glucocerebrosidase

To the recombinant wild type enzyme (22 μM, 95 μL, 1 equiv) in 0.1 Mphosphate buffer (pH 7.2) was added 2,5-dioxopyrrolidin-1-yl3-(2-(2-(4-(4-(2,4-dimethylpyrrolo[1,2-a]pyrimidine-8-carboxamido)phenyl)-1H-1,2,3-triazol-1-yl)ethoxy)ethoxy)propanoate(4) in DMSO (0.89 mM, 5 μL, 2 equiv) in one portion, and was vortexedfor 5 sec immediately. At indicated time points, the reaction solution(2 μL) was sampled and diluted (1:3125 dilution) into the assay buffer(50 mM citric acid, 176 mM K₂HPO₄, and 0.01% Tween-20 at pH 5.9). After2 h the reaction solution was dialyzed three times with 0.1 M phosphatebuffer (pH 7.2). The enzyme was adjusted to the same concentration andsampled for activity. The dilution solutions were assayed with threesubstrates, resorufin substrate, 4-MU substrate, and natural substrateusing the methods described in the examples above without addingcompounds.

Example 6—Synthesis and Testing of Additional Compounds

Additional compounds were prepared and tested according to theprocedures provided in the examples above. Dose-response curves wereprepared to determine IC₅₀ or AC₅₀ and compared to the knownglucocerebrosidase activator NCGC00188758 (see Aflaki et al., Sci.Transl. Med. 6, 240ra273 (2014). Results are shown in the followingtable.

Table of Substituted Quinazoline Compounds IC₅₀ or AC₅₀ No. StructuresMW (μM) 1H NMR 13C NMR Mass  1

338 0.007 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.78 (d, J = 1.7 Hz, 1H), 8.84(dd, J = 7.9, 1.7 Hz, 1H), 8.69 (d, J = 4.7 Hz, 1H), 7.93 (d, J = 8.3Hz, 1H), 7.77-7.70 (m, 1H), 7.68 (d, J = 8.1 Hz, 1H), 7.47-7.37 (m, 2H),7.32- 7.27 (m, 2H), 7.25-7.20 (m, 2H), 6.04 (s, 1H), 5.37-5.29 (m, 1H),3.60 (dd, J = 16.2, 7.2 Hz, 2H), 3.08 (dd, J = 16.2, 4.8 Hz, 2H). ¹³CNMR (125 MHz, CDCl₃) δ 159.4, 158.6, 150.7, 150.3, 141.1, 135.8, 134.4,132.9, 128.9, 127.0, 126.0, 125.1, 123.3, 120.7, 113.9, 52.6, 40.3,ESI-MS m/z: 339 (M + H)⁺  2

352 2.15 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.74 (d, J = 1.5 Hz, 1H), 8.77(d, J = 8.0 Hz, 1H), 8.68 (dd, J = 4.7, 1.5 Hz, 1H), 8.04 (d, J = 7.9Hz, 1H), 7.96 (d, J = 8.3 Hz, 1H), 7.78-7.69 (m, 1H), 7.45- 7.41 (m,1H), 7.39 (dd, J = 7.9, 4.8 Hz, 1H), 7.29 (dd, J = 5.2, 3.4 Hz, 2H),7.25-7.20 (m, 2H), 5.66-5.58 (m, 1H), 3.47 (dd, J = 16.4, 8.6 Hz, 2H),3.35- 3.26 (m, 5H). ¹³C NMR (125 MHz, CDCl₃) δ 164.7, 157.5, 153.1,150.8, 150.4, 141.3, 135.7, 134.3, 132.5, 129.0, 126.9, 125.5, 124.8,124.7, 123.3, 115.7, 60.2, 36.4, 35.6 ESI-MS m/z: 353 (M + H)⁺  3

384 1.78 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.67 (s, 1H), 8.74 (dt, J =7.9, 1.7 Hz, 1H), 8.69 (d, J = 3.5 Hz, 1H), 8.14 (d, J = 8.5 Hz, 1H),7.95 (d, J = 8.4 Hz, 1H), 7.78- 7.68 (m, 1H), 7.45-7.37 (m, 2H),6.91-6.81 (m, 4H), 4.88- 4.75 (m, 1H), 4.38 (dd, J = 11.5, 2.3 Hz, 1H),4.32 (dd, J = 14.3, 4.5 Hz, 1H), 4.17-4.14 (m, 1H), 4.13 (d, J = 6.4 Hz,1H), 3.67 (s, 3H). 163.1, 157.2, 153.2, 150.8, 150.1, 143.2, 142.7,135.7, 134.2, 132.6, 129.0, 125.6, 124.9, 123.4, 121.9, 121.7, 117.5,117.4, 115.1, 71.9, 66.1, 53.1, 43.2, ESI-MS m/z: 385 (M + H)⁺  4

326 NA ¹H NMR (500 MHz, CDCl₃) δ 9.73 (d, J = 1.8 Hz, 1H), 8.79 (dt, J =7.9 Hz, 1.7 Hz, 1H), 7.96 (dd, J = 8.2, 4.4 Hz, 2H), 7.76- 7.68 (m, 1H),7.45-7.38 (m, 5H), 7.37-7.30 (m, 2H), 5.07 (s, 2H), 3.40 (s, 3H). 163.9,157.5, 152.9, 150.8, 150.3, 137.4, 135.8, 134.2, 132.5, 129.0, 128.9,127.6, 127.3, 125.2, 125.0, 123.2, 115.0, 57.1, 39.7, ESI-MS m/z: 327(M + H)⁺  5

327 35.48 (act) ¹H NMR (400 MHz, CDCl₃) δ 9.66 (d, J = 1.6 Hz, 1H), 8.75(dt, J = 7.9, 1.9 Hz, 1H), 8.71- 8.62 (m, 2H), 8.05 (dd, J = 8.5, 0.8Hz, 1H), 7.97 (d, J = 8.2 Hz, 1H), 7.80-7.64 (m, 2H), 7.45 (d, J = 7.8Hz, 1H), 7.41-7.30 (m, 2H), 7.26-7.22 (m, 1H), 5.17 (s, 2H), 3.52 (s,3H). ¹³C NMR (100 MHz, CDCl₃) δ 163.5, 157.7, 157.4, 153.0, 150.7,150.2, 149.8, 137.1, 135.7, 134.2, 132.5, 128.9, 125.2, 125.0, 123.2,122.5, 121.5, 115.0, 58.9, 40.4 ESI-MS m/z: 328 (M + H)⁺  6

336 11.22 (act) ¹H NMR (400 MHz, CDCl₃) δ 9.68 (s, 1H), 8.76 (d, J = 7.9Hz, 1H), 8.68 (d, J = 3.5 Hz, 1H), 8.14 (d, J = 8.0 Hz, 1H), 7.96 (d, J= 8.4 Hz, 1H), 7.78-7.67 (m, 1H), 7.45-7.36 (m, 2H), 4.22- 4.12 (m, 1H),4.09 (dd, J = 14.2, 4.0 Hz, 1H), 3.91 (dd, J = 11.5, 2.5 Hz, 1H),3.85-3.68 (m, 4H), 3.65 (dd, J = 11.2, 2.9 Hz, 1H), 3.60 (s, 3H), 3.43(dd, J = 11.5, 10.1 Hz, 1H). ¹³C NMR (100 MHz, CDCl₃) δ 163.2, 157.2,153.1, 150.7, 150.1, 135.6, 134.2, 132.4, 128.8, 125.7, 124.7, 123.2,115.1, 74.4, 69.4, 66.8, 66.5, 53.9, 42.6, ESI-MS m/z: 337 (M + H)⁺  7

327 12.59 (act) ¹H NMR (400 MHz, CDCl₃) δ 9.70 (d, J = 1.6 Hz, 1H), 8.77(d, J = 8.0 Hz, 1H), 8.70 (d, J = 1.5 Hz, 1H), 8.68 (dd, J = 4.8, 1.6Hz, 1H), 8.59 (dd, J = 4.7, 1.0 Hz, 1H), 7.99 (dd, J = 8.7, 0.8 Hz, 2H),7.81-7.71 (m, 2H), 7.44-7.36 (m, 2H), 7.32 (dd, J = 7.8, 4.9 Hz, 1H),5.11 (s, 2H), 3.43 (s, 3H). ¹³C NMR (100 MHz, CDCl₃) δ 163.9, 157.4,153.0, 150.8, 150.1, 149.3, 149.2, 135.8, 135.3, 134.1, 133.1, 132.8,129.1, 125.2, 125.1, 123.9, 123.3, 115.0, 54.3, 40.3, ESI-MS m/z: 328(M + H)⁺  8

327 15.85 (act) ¹H NMR (400 MHz, CDCl₃) δ 9.66 (d, J = 1.2 Hz, 1H), 8.73(dt, J = 7.9, 1.9 Hz, 1H), 8.67 (dd, J = 4.8, 1.6 Hz, 1H), 8.64- 8.61(m, 2H), 7.96 (dd, J = 17.9, 8.4 Hz, 2H), 7.80-7.70 (m, 1H), 7.44-7.31(m, 4H), 5.06 (s, 2H), 3.45 (s, 3H). ¹³C NMR (100 MHz, CDCl₃) δ 163.8,157.4, 153.0, 150.9, 150.4, 150.2, 146.9, 135.7, 134.0, 132.8, 129.2,125.3, 124.9, 123.3, 122.3, 115.0, 56.1, 40.4, ESI-MS m/z: 328 (M + H)⁺ 9

328 14.13 (act) ¹H NMR (400 MHz, CDCl₃) δ 9.60 (s, 1H), 8.74 (s, 1H),8.71- 8.62 (m, 2H), 8.58 (d, J = 1.5 Hz, 1H), 8.52 (s, 1H), 8.10 (d, J =8.5 Hz, 1H), 7.98 (d, J = 8.4 Hz, 1H), 7.81-7.70 (m, 1H), 7.45-7.32 (m,2H), 5.21 (s, 2H), 3.58 (s, 3H). 163.4, 157.4, 153.5, 153.0, 150.8,150.1, 144.3, 144.0, 143.7, 135.7, 134.0, 132.7, 129.1, 125.2, 123.2,115.0, 56.4, 41.3, ESI-MS m/z: 329 (M + H)⁺ 10

378 0.89 (act) ¹H NMR (500 MHz, CDCl3) δ 9.65 (s, 1H), 9.02 (s, 1H),8.70 (d, J = 7.7 Hz, 1H), 8.65 (d, J = 2.4 Hz, 1H), 8.14 (d, J = 8.4 Hz,1H), 8.10 (d, J = 8.1 Hz, 2H), 7.99 (d, J = 8.3 Hz, 1H), 7.83- 7.72 (m,3H), 7.42 (t, J = 7.6 Hz, 1H), 7.35 (dd, J = 7.2, 5.0 Hz, 1H), 5.41 (s,2H), 3.63 (s, 3H). ¹³C NMR (100 MHz, CDCl₃) δ 163.5, 157.4, 153.2,153.1, 150.8, 150.1, 144.7, 142.1, 135.7, 134.0, 132.8, 130.4, 129.9,129.4, 129.2, 129.1, 125.3, 125.2, 123.3, 115.0, 57.0, 41.4, ESI-MS m/z:379 (M + H)⁺ 11

370 1.00 (act) ¹H NMR (400 MHz, CDCl₃) δ 9.74 (s, 1H), 8.81 (dt, J =8.0, 1.9 Hz, 1H), 8.68 (d, J = 3.3 Hz, 1H), 7.97 (d, J = 8.8 Hz, 2H),7.76-7.66 (m, 1H), 7.40 (dd, J = 7.8, 4.8 Hz, 1H), 7.37-7.32 (m, 1H),6.89 (d, J = 9.4 Hz, 2H), 6.83 (d, J = 7.8 Hz, 1H), 5.97 (s, 2H), 4.98(s, 2H), 3.37 (s, 3H). ¹³C NMR (100 MHz, CDCl₃) δ 163.8, 157.5, 152.9,150.8, 150.3, 148.4, 147.2, 135.8, 132.5, 131.2, 128.9, 125.2, 125.0,123.3, 120.7, 115.1, 108.6, 107.8, 101.2, 56.7, 39.6, ESI-MS m/z: 371(M + H)⁺ 12

338 NA ¹H NMR (400 MHz, CDCl₃) δ 9.79 (s, 1H), 8.83 (d, J = 7.9 Hz, 1H),8.71 (s, 1H), 7.99 (dd, J = 14.1, 8.4 Hz, 2H), 7.76 (t, J = 7.8 Hz, 1H),7.53-7.37 (m, 2H), 7.23 (s, 4H), 5.07 (s, 2H), 4.15 (t, J = 5.7 Hz, 2H),3.22 (t, J = 5.6 Hz, 2H). ¹³C NMR (100 MHz, CDCl₃) δ 164.2, 157.6,152.8, 150.8, 150.4, 135.8, 134.8, 133.9, 132.6, 129.0, 128.9, 126.9,126.6, 126.5, 125.2, 125.0, 123.3, 115.6, 51.4, 48.2, 29.0, ESI-MS m/z:339 (M + H)⁺ 13

381 44.67 (act) ¹H NMR (400 MHz, CDCl₃) δ 9.73 (d, J = 1.5 Hz, 1H), 8.79(dt, J = 8.0, 1.9 Hz, 1H), 8.68 (dd, J = 4.8, 1.7 Hz, 1H), 7.99- 7.91(m, 2H), 7.77-7.68 (m, 1H), 7.39 (dd, J = 7.9, 4.8 Hz, 1H), 7.36-7.29(m, 1H), 7.28- 7.21 (m, 3H), 5.05 (s, 2H), 3.97 (d, J = 6.7 Hz, 4H),3.38 (s, 3H), 2.64 (s, 3H). ¹³C NMR (100 MHz, CDCl₃) δ 163.9, 157.6,153.0, 150.8, 150.3, 136.2, 135.7, 134.3, 132.5, 128.9, 126.1, 125.2,125.0, 123.2, 122.8, 121.1, 115.1, 60.9, 60.8, 57.1, 42.4, 39.6, ESI-MSm/z: 382 (M + H)⁺ 14

383 1.12 (act) ¹H NMR (400 MHz, CDCl₃) δ 9.80 (s, 1H), 8.84 (d, J = 8.0Hz, 1H), 8.69 (d, J = 3.6 Hz, 1H), 8.13 (d, J = 8.3 Hz, 1H), 8.02 (dd, J= 16.6, 8.2 Hz, 2H), 7.81 (d, J = 7.9 Hz, 1H), 7.78 (d, J = 8.1 Hz, 1H),7.48 (d, J = 7.3 Hz, 1H), 7.46-7.34 (m, 3H), 5.44 (s, 2H), 3.58 (s, 3H).¹³C NMR (100 MHz, CDCl₃) δ 168.5, 163.2, 157.2, 153.1, 152.8, 150.9,150.4, 135.9, 135.8, 133.8, 132.9, 129.1, 126.2, 125.4, 125.3, 125.3,123.3, 123.0, 121.9, 115.0, 54.8, 40.8, ESI-MS m/z: 384 (M + H)⁺ 15

366 8.91 (act) ¹H NMR (400 MHz, CDCl₃) δ 9.61 (s, 1H), 8.66 (dt, J =8.0, 1.9 Hz, 1H), 8.61-8.48 (m, 1H), 8.03 (d, J = 8.3 Hz, 1H), 7.92 (d,J = 8.3 Hz, 1H), 7.79- 7.68 (m, 1H), 7.57 (brs, 2H), 7.46-7.33 (m, 1H),7.26-7.20 (m, 3H), 5.27 (s, 2H), 3.47 (s, 3H). ¹³C NMR (100 MHz, CDCl₃)δ 163.4, 156.9, 152.9, 151.1, 150.7, 149.5, 135.5, 133.7, 133.2, 128.9,125.6, 125.5, 123.4, 122.8, 114.9, 50.5, 40.7, ESI-MS m/z: 367 (M + H)⁺16

356 3.13 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.73 (s, 1H), 8.79 (dt, J =7.9, 1.8 Hz, 1H), 8.67 (d, J = 3.5 Hz, 1H), 7.94 (d, J = 8.2 Hz, 1H),7.86 (d, J = 8.3 Hz, 1H), 7.74- 7.63 (m, 1H), 7.43 (d, J = 7.4 Hz, 1H),7.38 (dd, J = 7.9, 4.8 Hz, 1H), 7.35-7.30 (m, 1H), 7.30-7.23 (m, 1H),7.00 (t, J = 7.4 Hz, 1H), 6.95 (d, J = 8.2 Hz, 1H), 5.00 (s, 2H), 3.82(s, 3H), 3.38 (s, 3H). ¹³C NMR (125 MHz, CDCl₃) δ 164.1, 157.5, 152.8,150.7, 150.3, 135.7, 134.4, 132.3, 128.7, 128.6, 127.6, 125.2, 125.2,124.8, 123.2, 120.8, 115.2, 110.3, 55.3, 53.3, 39.4, ESI-MS m/z: 357(M + H)⁺ 17

376 1.56 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.77 (s, 1H), 8.83 (d, J = 7.8Hz, 1H), 8.69 (d, J = 3.5 Hz, 1H), 7.99 (d, J = 8.6 Hz, 2H), 7.95- 7.78(m, 4H), 7.78-7.67 (m, 1H), 7.58-7.44 (m, 3H), 7.41 (dd, J = 7.7, 4.9Hz, 1H), 7.37- 7.28 (m, 1H), 5.23 (s, 2H), 3.45 (s, 3H). ¹³C NMR (125MHz, CDCl₃) δ 164.0, 157.5, 152.9, 150.8, 150.3, 135.8, 134.9, 134.3,133.6, 133.0, 132.6, 129.0, 128.9, 127.9, 126.6, 126.1, 125.9, 125.3,125.2, 125.1, 123.3, 115.1, 57.4, 39.7, ESI-MS m/z: 377 (M + H)⁺ 18

367 11.22 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.66 (d, J = 1.5 Hz, 1H), 8.73(dt, J = 7.9, 1.8 Hz, 1H), 8.65 (dd, J = 4.8, 1.6 Hz, 1H), 8.21 (d, J =7.9 Hz, 1H), 7.99 (d, J = 8.3 Hz, 1H), 7.82-7.75 (m, 1H), 7.75-7.70 (m,1H), 7.59- 7.51 (m, 1H), 7.50-7.44 (m, 1H), 7.38-7.30 (m, 3H), 5.25 (s,2H), 3.71 (s, 3H). ¹³C NMR (125 MHz, CDCl₃) δ 163.5, 163.1, 157.2,153.0, 150.9, 150.7, 150.1, 141.1, 135.9, 134.0, 132.9, 129.1, 125.4,125.3, 125.3, 124.7, 123.3, 120.2, 115.1, 110.8, 50.4, 41.7, ESI-MS m/z:368 (M + H)⁺ 19

384 3.98 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.73 (s, 1H), 8.79 (d, J = 7.9Hz, 1H), 8.67 (d, J = 4.6 Hz, 1H), 7.95 (t, J = 8.0 Hz, 2H), 7.74- 7.66(m, 1H), 7.39 (dd, J = 7.7, 4.9 Hz, 1H), 7.36-7.30 (m, 1H), 6.94 (s,1H), 6.89 (s, 2H), 4.95 (s, 2H), 4.27 (s, 4H), 3.37 (s, 3H). ¹³C NMR(125 MHz, CDCl₃) δ 163.8, 157.5, 153.0, 150.8, 150.3, 144.0, 143.1,135.7, 134.3, 132.5, 130.6, 128.9, 125.2, 124.9, 123.2, 120.3, 117.7,116.1, 115.1, 64.5, 64.4, 56.5, 39.5, ESI-MS m/z: 385 (M + H)⁺ 20

370 7.94 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.73 (d, J = 1.5 Hz, 1H), 8.79(dt, J = 7.9, 1.9 Hz, 1H), 8.70 (dd, J = 4.7, 1.6 Hz, 1H), 7.99- 7.90(m, 1H), 7.82-7.75 (m, 2H), 7.54-7.47 (m, 1H), 7.42 (dd, J = 7.9, 4.8Hz, 1H), 6.98- 6.92 (m, 1H), 6.92-6.82 (m, 3H), 6.23 (t, J = 5.1 Hz,1H), 4.66-4.60 (m, 1H), 4.43 (dd, J = 11.5, 2.3 Hz, 1H), 4.24 (ddd, J =14.3, 6.1, 4.3 Hz, 1H), 4.16- 4.08 (m, 2H). 13C NMR (125 MHz, CDCl₃) δ159.9, 158.5, 150.9, 150.5, 150.2, 143.2, 142.8, 135.7, 134.3, 133.1,129.1, 126.3, 123.3, 121.8, 120.8, 117.4, 117.4, 113.9, 71.9, 66.0,41.5, ESI-MS m/z: 371 (M + H)⁺ 21

384 3.55 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.70 (d, J = 1.6 Hz, 1H), 8.77(dt, J = 7.9, 1.8 Hz, 1H), 8.67 (dd, J = 4.8, 1.6 Hz, 1H), 8.07- 8.02(m, 2H), 8.00 (t, J = 8.1 Hz, 2H), 7.79-7.70 (m, 1H), 7.64 (dd, J = 9.1,1.4 Hz, 1H), 7.43- 7.32 (m, 2H), 5.24 (s, 2H), 3.49 (s, 3H). ¹³C NMR(125 MHz, CDCl₃) δ 163.9, 157.5, 155.2, 154.6, 153.1, 150.9, 150.3,139.7, 135.7, 134.1, 132.8, 129.5, 129.2, 125.2, 125.0, 123.3, 122.2,119.2, 115.1, 56.8, 40.3, ESI-MS m/z: 385 (M + H)⁺ 22

391 10.00 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.72 (s, 1H), 8.82-8.75 (m,1H), 8.69 (dd, J = 4.7, 1.6 Hz, 1H), 7.98 (d, J = 8.4 Hz, 1H), 7.90 (d,J = 8.3 Hz, 1H), 7.83- 7.73 (m, 1H), 7.50-7.43 (m, 1H), 7.43-7.36 (m,1H), 3.84 (d, J = 4.6 Hz, 4H), 3.75-3.65 (m, 4H), 1.50 (d, J = 1.6 Hz,9H). ¹³C NMR (125 MHz, CDCl₃) δ 165.0, 157.6, 154.9, 152.8, 151.0,150.3, 135.7, 134.0, 132.9, 129.2, 125.7, 124.8, 123.3, 115.6, 80.3,49.9, 43.9, 28.5 ESI-MS m/z: 392 (M + H)⁺ 23

327 35.48 (inh) ¹H NMR (500 MHz, D₂O) δ 9.61 (d, J = 1.5 Hz, 1H), 9.31(d, J = 8.3 Hz, 1H), 9.01 (d, J = 5.6 Hz, 1H), 8.26 (dd, J = 8.1, 5.9Hz, 1H), 8.16 (d, J = 8.4 Hz, 1H), 8.06-7.99 (m, 1H), 7.96 (d, J = 8.2Hz, 1H), 7.75 (t, J = 7.4 Hz, 1H), 4.57- 4.48 (m, 4H), 3.57- 3.48 (m,4H). ¹³C NMR (125 MHz, D₂O) δ 163.5, 151.2, 145.6, 144.6, 142.6, 142.1,136.8, 131.6, 128.6, 127.7, 126.6, 120.4, 112.0, 45.9, 42.8 ESI-MS m/z:292 (M + H)⁺ 24

390 2.00 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.82 (d, J = 1.7 Hz, 1H), 8.87(dt, J = 7.9, 1.7 Hz, 1H), 8.69 (dd, J = 4.7, 1.5 Hz, 1H), 8.09 (d, J =8.4 Hz, 1H), 7.94 (d, J = 8.4 Hz, 1H), 7.78-7.65 (m, 1H), 7.45-7.32 (m,2H), 6.23 (s, 1H), 5.05 (s, 2H), 4.25 (d, J = 4.7 Hz, 2H), 4.23-4.18 (m,2H), 3.45 (s, 3H). ¹³C NMR (125 MHz, CDCl₃) δ 163.5, 157.4, 153.0,150.8, 150.6, 141.1, 140.2, 135.9, 134.1, 132.5, 128.9, 125.6, 124.7,123.2, 115.1, 113.2, 99.1, 64.9, 64.8, 47.0, 39.9 ESI-MS m/z: 391 (M +H)⁺ 25

374 35.48 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.60 (d, J = 1.5 Hz, 1H), 8.66(dd, J = 4.8, 1.7 Hz, 1H), 8.63 (dt, J = 7.9, 1.9 Hz, 1H), 8.14 (dd, J =8.4, 0.7 Hz, 1H), 7.98 (dd, J = 8.4, 0.7 Hz, 1H), 7.77 (ddd, J = 8.3,7.0, 1.3 Hz, 1H), 7.47 (ddd, J = 8.3, 7.0, 1.2 Hz, 1H), 7.36 (ddd, J =7.9, 4.8, 0.7 Hz, 1H), 5.11 (s, 2H), 3.70 (s, 3H), 2.59 (d, J = 1.1 Hz,2H), 2.16-2.05 (m, 1H), 0.90 (d, J = 6.7 Hz, 6H). ¹³C NMR (125 MHz,CDCl₃) δ 176.2, 170.1, 163.2, 157.2, 153.0, 150.9, 150.2, 135.6, 133.7,132.9, 129.2, 125.4, 125.2, 123.2, 115.0, 48.8, 42.2, 34.7, 27.1, 22.3,ESI-MS m/z: 375 (M + H)⁺ 26

445 1.00 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.66 (s, 1H), 8.75 (d, J = 7.9Hz, 1H), 8.69 (d, J = 4.2 Hz, 1H), 7.96 (d, J = 8.4 Hz, 1H), 7.78 (d, J= 8.3 Hz, 1H), 7.77-7.72 (m, 1H), 7.68 (d, J = 7.9 Hz, 2H), 7.50-7.37(m, 2H), 7.33 (d, J = 8.0 Hz, 2H), 3.94 (brs, 4H), 3.25 (brs, 4H), 2.41(s, 3H). ¹³C NMR (125 MHz, CDCl₃) δ 164.6, 157.4, 152.7, 150.9, 150.0,144.1, 135.8, 133.9, 133.1, 132.5, 130.0, 129.3, 127.9, 125.9, 124.6,123.4, 115.4, 49.2, 45.8, 21.6, ESI-MS m/z: 446 (M + H)⁺ 27

384 0.60 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.76 (d, J = 2.1 Hz, 1H), 8.81(dt, J = 7.9, 1.9 Hz, 1H), 8.69 (dd, J = 4.8, 1.7 Hz, 1H), 7.93 (d, J =8.3 Hz, 1H), 7.79-7.72 (m, 2H), 7.56-7.44 (m, 1H), 7.40 (dd, J = 7.9,4.8 Hz, 1H), 6.99-6.81 (m, 4H), 6.36 (t, J = 5.0 Hz, 1H), 4.45-4.37 (m,1H), 4.28 (dd, J = 11.3, 2.2 Hz, 1H), 4.18-4.09 (m, 1H), 4.09- 3.98 (m,2H), 2.28-2.19 (m, 1H), 2.15-2.05 (m, 1H). ¹³C NMR (125 MHz, CDCl₃) δ159.7, 158.7, 150.9, 150.4, 150.3, 143.3, 142.9, 135.7, 134.4, 132.9,129.1, 126.1, 123.2, 121.8, 121.8, 120.6, 117.4, 117.3, 114.0, 72.4,67.9, 38.4, 30.1, ESI-MS m/z: 385 (M + H)⁺ 28

398 2.82 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.68 (d, J = 1.4 Hz, 1H), 8.75(dt, J = 7.9, 1.8 Hz, 1H), 8.69 (dd, J = 4.7, 1.6 Hz, 1H), 7.98 (dd, J =13.2, 8.4 Hz, 2H), 7.80- 7.68 (m, 1H), 7.50-7.35 (m, 2H), 6.93-6.75 (m,4H), 4.86- 4.73 (m, 1H), 4.36 (dd, J = 11.4, 2.3 Hz, 1H), 4.23-4.11 (m,2H), 4.06-3.81 (m, 3H), 1.50 (t, J = 7.1 Hz, 3H). ¹³C NMR (125 MHz,CDCl₃) δ 163.4, 157.2, 152.9, 150.9, 150.1, 143.2, 142.8, 135.6, 134.2,132.7, 129.2, 125.3, 124.7, 123.4, 121.9, 121.6, 117.5, 117.3, 115.5,71.5, 66.2, 50.3, 49.2, 14.2, ESI-MS m/z: 399 (M + H)⁺ 29

453 2.24 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.72 (d, J = 1.5 Hz, 1H), 8.78(dt, J = 7.9, 1.9 Hz, 1H), 8.69 (dd, J = 4.8, 1.7 Hz, 1H), 8.00 (d, J =8.3 Hz, 1H), 7.91 (d, J = 7.8 Hz, 1H), 7.82-7.74 (m, 1H), 7.53-7.45 (m,1H), 7.40 (dd, J = 7.9, 4.8 Hz, 1H), 6.97- 6.81 (m, 4H), 4.89 (dd, J =8.0, 2.5 Hz, 1H), 4.52 (dd, J = 11.9, 2.5 Hz, 1H), 4.37 (dd, J = 11.9,8.0 Hz, 1H), 4.13-3.70 (m, 8H). ¹³C NMR (125 MHz, CDCl₃) δ 165.4, 164.9,157.7, 152.8, 151.1, 150.3, 143.4, 142.5, 135.7, 133.9, 133.1, 129.4,126.0, 124.6, 123.3, 122.5, 121.7, 117.6, 117.4, 115.6, 70.9, 65.2,50.0, 49.7, 45.6, 42.0, ESI-MS m/z: 454 (M + H)⁺ 30

439 3.13 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.73 (d, J = 1.3 Hz, 1H), 8.79(dt, J = 8.0, 1.7 Hz, 1H), 8.69 (dd, J = 4.7, 1.4 Hz, 1H), 7.97 (d, J =8.3 Hz, 1H), 7.90 (d, J = 8.2 Hz, 1H), 7.77-7.71 (m, 1H), 7.48 7.36 (m,2H), 6.97- 6.73 (m, 4H), 4.45-4.31 (m, 2H), 4.18 (s, 1H), 4.06 (dd, J =11.2, 7.1 Hz, 1H), 3.91 (t, J = 4.6 Hz, 4H), 2.91-2.60 (m, 5H). 164.8,157.7, 152.8, 150.9, 150.3, 143.3, 143.1, 135.7, 134.1, 132.7, 129.1,125.4, 125.0, 123.3, 121.7, 121.5, 117.5, 117.2, 115.6, 71.4, 66.9,58.6, 53.9, 49.8, 49.5, ESI-MS m/z: 440 (M + H)⁺ 31

392 19.95 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.70 (s, 1H), 8.78 (d, J = 7.9Hz, 1H), 8.71-8.62 (m, 1H), 7.98 (dd, J = 8.1, 4.7 Hz, 2H), 7.87 (s,1H), 7.73 (t, J = 8.0 Hz, 1H), 7.54 (d, J = 8.2 Hz, 2H), 7.45- 7.34 (m,4H), 7.29 (s, 1H), 7.21 (s, 1H), 5.12 (s, 2H), 3.44 (s, 3H). ¹³C NMR(125 MHz, CDCl₃) δ 163.8, 157.5, 153.1, 150.9, 150.3, 137.1, 136.8,135.7, 135.7, 134.2, 132.7, 130.6, 129.1, 128.9, 125.1, 125.0, 123.3,122.0, 118.3, 115.1, 56.3, 40.0, ESI-MS m/z: 393 (M + H)⁺ 32

398 3.16 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.73 (d, J = 1.4 Hz, 1H), 8.79(dt, J = 7.9, 1.8 Hz, 1H), 8.68 (dd, J = 4.7, 1.5 Hz, 1H), 8.06 (d, J =8.2 Hz, 1H), 7.94 (d, J = 8.3 Hz, 1H), 7.77-7.69 (m, 1H), 7.44-7.34 (m,2H), 6.93- 6.77 (m, 4H), 4.36-4.18 (m, 3H), 4.08-3.93 (m, 2H), 3.52 (s,3H), 2.34 -2.22 (m, 1H), 2.22-2.10 (m, 1H). ¹³C NMR (125 MHz, CDCl₃) δ163.2, 157.4, 153.1, 150.8, 150.2, 143.3, 143.1, 135.7, 134.3, 132.4,129.0, 125.5, 124.8, 123.3, 121.7, 121.6, 117.4, 117.3, 115.3, 71.1,68.0, 49.3, 41.1, 28.7, ESI-MS m/z: 399 (M + H)⁺ 33

402 NA ¹H NMR (500 MHz, CDCl₃) δ 9.76 (s, 1H), 8.80 (d, J = 7.9 Hz, 1H),8.69 (d, J = 3.5 Hz, 1H), 7.99 (dd, J = 11.9, 8.7 Hz, 2H), 7.73 (t, J =7.5 Hz, 1H), 7.68- 7.55 (m, 5H), 7.50 (d, J = 8.0 Hz, 2H), 7.45 (t, J =7.6 Hz, 2H), 7.42-7.32 (m, 3H), 5.12 (s, 2H), 3.43 (s, 3H). ¹³C NMR (125MHz, CDCl₃) δ 164.0, 157.6, 153.0, 150.8, 150.4, 140.7, 140.6, 136.5,135.7, 134.3, 132.5, 129.0, 128.9, 127.8, 127.7, 127.5, 127.1, 125.2,125.0, 123.2, 115.1, 56.8, 39.7, 34

396 NA ¹H NMR (500 MHz, CDCl₃) δ 9.71 (d, J = 1.5 Hz, 1H), 8.77 (dt, J =7.9, 1.8 Hz, 1H), 8.67 (dd, J = 4.7, 1.5 Hz, 1H), 7.97 (d, J = 8.2 Hz,1H), 7.88 (d, J = 8.2 Hz, 1H), 7.80 (t, J = 7.5 Hz, 1H), 7.71 (d, J =8.8 Hz, 2H), 7.52 (t, J = 7.5 Hz, 1H), 7.49 (s, 1H), 7.40 (dd, J = 7.8,4.8 Hz, 1H), 7.03 (d, J = 8.9 Hz, 2H), 3.32-3.15 (m, 4H), 2.68-2.53 (m,4H), 2.37 (s, 3H). ¹³C NMR (125 MHz, CDCl₃) δ 158.7, 157.7, 150.9,150.4, 148.5, 135.8, 134.3, 133.0, 130.5, 129.3, 126.4, 123.3, 123.1,120.4, 116.5, 114.1, 55.2, 49.5, 46.3, ESI-MS m/z: 397 (M + H)⁺ 35

222 Weak (act) ¹H NMR (500 MHz, d6-DMSO) δ 9.59 (d, J = 1.5 Hz, 1H),8.71 (dt, J = 7.9, 1.8 Hz, 1H), 8.68 (dd, J = 4.7, 1.5 Hz, 1H), 8.29 (d,J = 8.2 Hz, 1H), 7.98 (brs, 2H), 7.83-7.73 (m, 2H), 7.57- 7.45 (m, 2H).¹³C NMR (125 MHz, CDCl₃) δ 162.6, 158.6, 151.0, 150.6, 149.6, 135.4,134.3, 133.6, 128.1, 126.0, 124.1, 123.8, 113.9, ESI-MS m/z: 223 (M +H)⁺ 36

410 39.81 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.77 (d, J = 1.5 Hz, 1H), 8.82(dt, J = 7.9, 1.8 Hz, 1H), 8.68 (dd, J = 4.8, 1.5 Hz, 1H), 7.92 (d, J =8.3 Hz, 1H), 7.78-7.71 (m, 1H), 7.69 (d, J = 8.1 Hz, 1H), 7.47-7.38 (m,2H), 7.35 (d, J = 8.6 Hz, 2H), 6.92 (d, J = 8.6 Hz, 2H), 6.03 (s, 1H),4.89 (d, J = 5.2 Hz, 2H), 3.27-3.11 (m, 4H), 2.64-2.47 (m, 4H), 2.34 (s,3H). ¹³C NMR (125 MHz, CDCl₃) δ 159.5, 158.8, 151.0, 150.8, 150.5,150.4, 135.8, 134.5, 132.8, 129.3, 129.1, 129.0, 125.9, 123.2, 120.7,116.2, 113.9, 55.1, 49.1 46.2, 45.1, ESI-MS m/z: 411 (M + H)⁺ 37

425 Weak (act) ¹H NMR (500 MHz, CDCl₃) δ 9.76 (d, J = 1.6 Hz, 1H), 8.82(dt, J = 7.9, 1.9 Hz, 1H), 8.71 (dd, J = 4.8, 1.7 Hz, 1H), 7.95 (d, J =8.3 Hz, 1H), 7.82-7.76 (m, 1H), 7.74 (d, J = 8.2 Hz, 1H), 7.54-7.46 (m,1H), 7.43 (dd, J = 7.9, 4.8 Hz, 1H), 6.23 (t, J = 5.8 Hz, 1H), 5.13 (d,J = 6.0 Hz, 2H). ¹³C NMR (125 MHz, CDCl₃) δ 159.1, 158.6, 151.0, 150.5,150.3, 135.7, 134.2, 133.2, 129.2, 126.4, 123.3, 120.5, 113.8, 33.4,ESI-MS m/z: 426 (M + H)⁺ 38

493 Weak (act) ¹H NMR (500 MHz, CDCl₃) δ 9.70 (d, J = 1.6 Hz, 1H), 8.77(dt, J = 7.9, 1.8 Hz, 1H), 8.68 (dd, J = 4.7, 1.6 Hz, 1H), 7.99 (d, J =8.3 Hz, 1H), 7.91 (d, J = 8.1 Hz, 1H), 7.81-7.72 (m, 1H), 7.51-7.44 (m,1H), 7.44- 7.35 (m, 3H), 6.91 (d, J = 8.8 Hz, 2H), 3.89 (s, 8H), 3.35-3.22 (m, 4H), 2.61-2.51 (m, 4H), 2.35 (s, 3H). ¹³C NMR (125 MHz, CDCl₃)δ 171.1, 165.0, 157.6, 152.7, 152.5, 151.0, 150.2, 135.7, 133.9, 133.0,129.3, 129.2, 125.8, 125.0, 124.7, 123.3, 115.6, 114.7, 54.9, 50.0,48.2, 46.2, 46.0, ESI-MS m/z: 494 (M + H)⁺ 39

290 0.79 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.76 (d, J = 1.5 Hz, 1H), 8.81(dt, J = 7.9, 1.9 Hz, 1H), 8.68 (dd, J = 4.8, 1.7 Hz, 1H), 7.91 (d, J =8.2 Hz, 1H), 7.76-7.71 (m, 1H), 7.70 (d, J = 8.2 Hz, 1H), 7.46-7.42 (m,1H), 7.40 (dd, J = 7.9, 4.8 Hz, 1H), 5.73 (d, J = 6.1 Hz, 1H), 4.80-4.72(m, 1H), 2.34-2.25 (m, 2H), 1.86-1.71 (m, 4H), 1.67-1.59 (m, 2H). 13CNMR (125 MHz, CDCl₃) δ 159.4, 158.8, 150.7, 150.4, 150.3, 135.7, 134.6,132.7, 129.0, 125.8, 123.2, 120.6, 113.9, 53.2, 33.4, 24.1, ESI-MS m/z:291 (M + H)⁺ 40

304 0.177 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.74 (s, 1H), 8.84 (d, J = 6.6Hz, 1H), 8.70 (s, 1H), 7.95 (d, J = 7.1 Hz, 1H), 7.74 (t, J = 7.7 Hz,2H), 7.49-7.35 (m, 2H), 5.77 (s, 1H), 4.48-4.32 (m, 1H), 2.28-2.20 (m,2H), 1.93-1.79 (m, 2H), 1.79-1.67 (m, 1H), 1.61-1.46 (m, 2H), 1.46-1.23(m, 3H). ¹³C NMR (125 MHz, CDCl₃) δ 158.9, 158.8, 150.7, 150.5, 150.3,135.7, 134.6, 132.7, 129.0, 125.8, 123.2, 120.5, 113.9, 50.1, 33.0,25.9, 25.1, ESI-MS m/z: 305 (M + H)⁺ 41

347 35.48 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.73 (d, J = 1.2 Hz, 1H), 8.79(dt, J = 7.8, 1.5 Hz, 1H), 8.68 (dd, J = 4.6, 1.2 Hz, 1H), 7.91 (d, J =8.3 Hz, 1H), 7.77-7.73 (m, 1H), 7.71 (d, J = 8.2 Hz, 1H), 7.49-7.43 (m,1H), 7.41 (dd, J = 7.8, 4.8 Hz, 1H), 5.68 (d, J = 7.1 Hz, 1H), 4.49-4.35(m, 1H), 2.99 (d, J = 11.1 Hz, 2H), 2.90-2.79 (m, 1H), 2.47 (t, J = 11.6Hz, 2H), 2.28 (d, J = 11.5 Hz, 2H), 1.80-1.66 (m, 2H), 1.13 (d, J = 6.4Hz, 6H). ¹³C NMR (125 MHz, CDCl₃) δ 159.0, 158.7, 150.8, 150.5, 150.4,135.7, 134.5, 132.8, 129.0, 125.9, 123.3, 120.6, 113.9, 54.9, 48.7,47.8, 32.3, 18.4, ESI-MS m/z: 348 (M + H)⁺ 42

262 39.81 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.81 (s, 1H), 8.89 (d, J = 7.9Hz, 1H), 8.70 (d, J = 3.7 Hz, 1H), 7.96 (d, J = 8.3 Hz, 1H), 7.77- 7.73(m, 1H), 7.71 (d, J = 8.2 Hz, 1H), 7.47-7.36 (m, 2H), 6.14 (s, 1H), 3.17(td, J = 6.9, 3.1 Hz, 1H), 1.07-0.95 (m, 2H), 0.79-0.67 (m, 2H). ¹³C NMR(125 MHz, CDCl₃) δ 160.9, 158.9, 150.8, 150.5, 150.4, 135.8, 134.5,132.8, 129.0, 126.0, 123.2, 120.6, 113.9, 24.5, 7.5, ESI-MS m/z: 263(M + H)⁺ 43

276 4.47 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.75 (s, 1H), 8.87-8.79 (m,1H), 8.69 (d, J = 4.2 Hz, 1H), 7.93 (dd, J = 8.0, 4.1 Hz, 1H), 7.74 (t,J = 8.2 Hz, 2H), 7.47- 7.43 (m, 1H), 7.43-7.39 (m, 1H), 6.03 (s, 1H),4.96-4.97 (m, 1H), 2.66-2.54 (m, 2H), 2.16-2.03 (m, 2H), 1.96-1.85 (m,2H). ¹³C NMR (125 MHz, CDCl₃) δ 158.8, 150.7, 150.5, 150.4, 135.7,134.5, 132.8, 129.0, 125.9, 123.2, 120.6, 113.7, 46.8, 31.4, 15.6,ESI-MS m/z: 277 (M + H)⁺ 44

395 31.62 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.72 (d, J = 1.6 Hz, 1H), 8.78(dt, J = 7.9, 1.9 Hz, 1H), 8.69 (dd, J = 4.8, 1.6 Hz, 1H), 7.91 (d, J =8.2 Hz, 1H), 7.77-7.72 (m, 1H), 7.71 (d, J = 8.1 Hz, 1H), 7.50-7.43 (m,1H), 7.41 (dd, J = 7.8, 5.0 Hz, 1H), 7.39- 7.27 (m, 5H), 5.66 (d, J =7.1 Hz, 1H), 4.49-4.37 (m, 1H), 3.62 (s, 2H), 2.98 (d, J = 10.6 Hz, 2H),2.38-2.29 (m, 2H), 2.24 (d, J = 11.4 Hz, 2H), 1.81-1.69 (m, 2H). ¹³C NMR(125 MHz, CDCl₃) δ 159.0, 158.7, 150.8, 150.5, 150.3, 135.6, 134.5,132.8, 129.4, 129.0, 128.4, 127.4, 125.9, 123.2, 120.6, 113.9, 63.2,52.5, 48.4, 32.0, ESI-MS m/z: 396 (M + H)⁺ 45

319 Weak (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.72 (s, 1H), 8.78 (d, J = 7.5Hz, 1H), 8.68 (d, J = 3.4 Hz, 1H), 7.90 (d, J = 8.1 Hz, 1H), 7.73 (t, J= 7.4 Hz, 1H), 7.49-7.34 (m, 3H), 5.73 (d, J = 6.1 Hz, 1H), 4.48-4.30(m, 1H), 2.91 (d, J = 9.1 Hz, 2H), 2.36 (s, 3H), 2.32- 2.17 (m, 4H),1.72 (m, 2H). 13C NMR (125 MHz, CDCl₃) δ 159.0, 158.7, 150.8, 150.4,150.3, 135.6, 134.5, 132.8, 129.0, 125.9, 123.2, 120.7, 113.9, 54.7,48.0, 46.3, 32.1, ESI-MS m/z: 320 (M + H)⁺ 46

347 NA ¹H NMR (500 MHz, CDCl₃) δ 9.70 (s, 1H), 8.76 (d, J = 7.8 Hz, 1H),8.65 (d, J = 3.6 Hz, 1H), 7.87 (d, J = 8.2 Hz, 1H), 7.78 (d, J = 8.1 Hz,1H), 7.75-7.66 (m, 1H), 7.42 (t, J = 7.5 Hz, 1H), 7.37 (dd, J = 7.5, 4.9Hz, 1H), 6.02 (d, J = 6.7 Hz, 1H), 4.64 (s, 1H), 2.38 (s, 6H), 2.30 (s,1H), 2.05 (s, 2H), 1.83 (s, 6H). ¹³C NMR (125 MHz, CDCl₃) δ 159.0,158.6, 150.6, 150.3, 150.2, 135.7, 134.6, 132.7, 128.8, 125.9, 123.2,120.8, 114.0, 62.2, 46.0, 42.5, 27.9, 25.6, ESI-MS m/z: 348 (M + H)⁺ 47

332 0.126 (inh) 3:2 isomers mixture ESI-MS m/z: 333 (M + H)⁺ 48

318 0.089 (inh) 2:1 isomer mixture ESI-MS m/z: 319 (M + H)⁺ 49

318 0.056 (inh) Cis:Trans = 3:2 isomer mixture ESI-MS m/z: 319 (M + H)⁺50

298 Weak (act) ¹H NMR (500 MHz, CDCl₃) δ 9.73 (d, J = 1.8 Hz, 1H), 8.82(dt, J = 7.9, 1.9 Hz, 1H), 8.70 (dd, J = 4.8, 1.6 Hz, 1H), 8.01 (d, J =8.3 Hz, 1H), 7.95 (d, J = 8.1 Hz, 1H), 7.86 (d, J = 7.6 Hz, 2H),7.84-7.80 (m, 1H), 7.69 (brs, 1H), 7.61-7.52 (m, 1H), 7.50-7.45 (m, 2H),7.43 (dd, J = 7.9, 4.8 Hz, 1H), 7.21 (t, J = 7.4 Hz, 1H). ¹³C NMR (125MHz, CDCl₃) δ 158.4, 157.6, 150.8, 150.7, 150.2, 138.4, 136.1, 134.2,133.3, 129.3, 129.2, 126.8, 124.6, 123.4, 121.6, 120.5, 114.1 ESI-MSm/z: 299 (M + H)⁺ 51

312 7.08 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.56 (s, 1H), 8.61 (d, J = 7.9Hz, 1H), 8.47 (d, J = 3.6 Hz, 1H), 7.74 (d, J = 8.3 Hz, 1H), 7.61 (d, J= 8.2 Hz, 1H), 7.58-7.44 (m, 1H), 7.28-7.18 (m, 4H), 7.18- 7.13 (m, 2H),7.13-7.07 (m, 1H), 6.39 (s, 1H), 4.78 (d, J = 5.4 Hz, 2H). ¹³C NMR (125MHz, CDCl₃) δ 159.6, 158.7, 150.6, 150.4, 150.2, 138.5, 135.8, 134.5,132.8, 128.8, 128.0, 127.7, 126.0, 123.2, 120.9, 113.9, 45.4, ESI-MSm/z: 313 (M + H)⁺ 52

340 1.78 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.74 (s, 1H), 8.76 (dt, J =7.9, 1.8 Hz, 1H), 8.68 (d, J = 3.6 Hz, 1H), 7.90 (d, J = 8.3 Hz, 1H),7.78-7.66 (m, 1H), 7.53 (d, J = 7.8 Hz, 1H), 7.45-7.34 (m, 2H),7.33-7.27 (m, 2H), 7.25- 7.19 (m, 3H), 5.94 (s, 1H), 3.89- 3.75 (m, 2H),2.81 (t, J = 7.4 Hz, 2H), 2.13 (p, J = 7.2 Hz, 2H). ¹³C NMR (125 MHz,CDCl₃) δ 159.7, 158.7, 150.7, 150.3, 150.2, 141.6, 135.8, 134.5, 132.7,128.8, 128.7, 128.5, 126.2, 125.8, 123.2, 120.6, ESI-MS m/z: 341 (M +H)⁺ 113.9, 41.2, 33.7, 30.7, 53

354 1.58 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.75 (s, 1H), 8.81 (d, J = 7.9Hz, 1H), 8.69 (d, J = 3.7 Hz, 1H), 7.93 (d, J = 8.3 Hz, 1H), 7.77- 7.71(m, 1H), 7.70 (d, J = 8.1 Hz, 1H), 7.51-7.35 (m, 2H), 7.28 (d, J = 7.7Hz, 2H), 7.23- 7.10 (m, 3H), 5.90 (s, 1H), 3.89- 3.70 (m, 2H), 2.72 (t,J = 6.7 Hz, 2H), 1.90-1.75 (m, 4H). ¹³C NMR (125 MHz, CDCl₃) δ 159.7,158.7, 150.8, 150.3, 150.1, 142.1, 135.8, 134.4, 132.8, 128.8, 128.5,128.5, 126.0, 125.9, 123.3, 120.6, 113.9, 41.4, 35.7, 29.0, 28.9, ESI-MSm/z: 355 (M + H)⁺ 54

278 Weak (act) ¹H NMR (500 MHz, CDCl₃) δ 9.74 (s, 1H), 8.82 (d, J = 7.7Hz, 1H), 8.69 (d, J = 2.9 Hz, 1H), 7.92 (d, J = 8.1 Hz, 1H), 7.73 (t, J= 7.4 Hz, 1H), 7.67 (d, J = 8.2 Hz, 1H), 7.48-7.40 (m, 2H), 5.70 (s,1H), 1.69 (s, 9H). ¹³C NMR (125 MHz, CDCl₃) δ 159.1, 158.2, 150.7,150.3, 150.0, 135.8, 134.6, 132.6, 129.0, 125.9, 123.3, 120.5, 114.3,52.9, 29.0, ESI-MS m/z: 279 (M + H)⁺ 55

344 0.141 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.76 (s, 1H), 8.88 (d, J = 8.0Hz, 1H), 8.71 (d, J = 3.8 Hz, 1H), 8.00 (d, J = 8.3 Hz, 1H), 7.78- 7.72(m, 1H), 7.71 (d, J = 8.1 Hz, 1H), 7.48-7.40 (m, 2H), 7.33-7.26 (m, 1H),7.06 (d, J = 7.5 Hz, 1H), 6.99 (d, J = 9.7 Hz, 1H), 6.97-6.92 (m, 1H),6.35 (brs, 1H), 4.07 (d, J = 6.0 Hz, 2H), 3.12 (t, J = 7.0 Hz, 2H). ¹³CNMR (125 MHz, CDCl₃) δ 164.1, 162.2, 159.7, 158.3, 150.9, 150.1, 149.2,141.6, 141.5, 136.1, 133.8, 133.2, 130.4, 130.3, 128.2, 126.3, 124.6,123.4, 120.9, 115.9, 115.7, 113.8, ESI-MS m/z: 345 (M + H)⁺ 113.8,113.6, 42.5, 35.2, 56

318 5.01 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.72 (s, 1H), 8.79 (d, J = 7.8Hz, 1H), 8.67 (d, J = 3.8 Hz, 1H), 7.94 (d, J = 8.3 Hz, 2H), 7.70 (t, J= 7.6 Hz, 1H), 7.47-7.29 (m, 2H), 4.52 (t, J = 11.8 Hz, 1H), 3.28 (s,3H), 2.01 (d, J = 11.5 Hz, 2H), 1.92 (d, J = 13.2 Hz, 2H), 1.81-1.58 (m,3H), 1.58- 1.34 (m, 2H), 1.29-1.10 (m, 1H). ¹³C NMR (125 MHz, CDCl₃) δ163.8, 157.3, 153.0, 150.7, 150.3, 135.7, 134.4, 132.2, 128.7, 125.5,124.4, 123.2, 115.4, 59.9, 34.3, 30.1, 26.0, 25.8, ESI-MS m/z: 319 (M +H)⁺ 57

318 0.354 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.75 (s, 1H), 8.81 (d, J = 7.8Hz, 1H), 8.68 (d, J = 3.8 Hz, 1H), 7.91 (d, J = 8.2 Hz, 1H), 7.79- 7.65(m, 2H), 7.50-7.34 (m, 2H), 5.98 (s, 1H), 3.65 (t, J = 6.1 Hz, 2H), 1.87(d, J = 12.6 Hz, 2H), 1.82-1.61 (m, 4H), 1.32- 1.18 (m, 3H), 1.14-1.04(m, 1H). ¹³C NMR (125 MHz, CDCl₃) δ 159.9, 158.8, 150.7, 150.3, 135.7,134.6, 132.7, 128.9, 125.8, 123.2, 120.5, 114.0, 47.6, 38.0, 31.3, 26.5,26.0, ESI-MS m/z: 319 (M + H)⁺ 58

318 0.063 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.75 (s, 1H), 8.82 (d, J = 7.9Hz, 1H), 8.68 (s, 1H), 7.93 (d, J = 8.3 Hz, 1H), 7.78-7.65 (m, 2H),7.50-7.37 (m, 2H), 5.76 (d, J = 5.6 Hz, 1H), 4.64-4.46 (m, 1H),2.25-2.12 (m, 2H), 1.83-1.52 (m, 10H). ¹³C NMR (125 MHz, CDCl₃) δ 158.7,158.6, 150.7, 150.3, 150.2, 135.8, 134.5, 132.7, 128.8, 125.9, 123.3,120.6, 113.9, 52.3, 34.9, 28.3, 24.6, ESI-MS m/z: 319 (M + H)⁺ 59

358 4.47 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.73 (s, 1H), 8.90 (brs, 1H),8.72 (d, J = 4.0 Hz, 1H), 8.06 (brs, 1H), 7.99 (d, J = 8.4 Hz, 1H), 7.75(t, J = 7.5 Hz, 1H), 7.46 (dd, J = 7.8, 4.9 Hz, 1H), 7.44- 7.39 (m, 1H),7.30-7.27 (m, 1H), 7.05 (d, J = 7.6 Hz, 1H), 6.98 (d, J = 9.7 Hz, 1H),6.93 (td, J = 8.5, 2.3 Hz, 1H), 4.19- 4.04 (m, 2H), 3.46 (s, 3H), 3.23-3.10 (m, 2H). 13C NMR (125 MHz, CDCl₃) δ 164.1, 163.1, 162.1, 150.7,150.0, 136.3, 132.8, 130.3, 130.3, 125.4, 125.0, 124.6, 123.5, 115.9,115.7, 113.7, 113.6, 54.8, 41.2, 33.4, ESI-MS m/z: 359 (M + H)⁺ 60

326 0.112 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.79 (s, 1H), 8.85 (d, J = 7.1Hz, 1H), 8.70 (s, 1H), 7.94 (d, J = 8.4 Hz, 1H), 7.78-7.69 (m, 1H), 7.60(d, J = 8.0 Hz, 1H), 7.46-7.39 (m, 2H), 7.38-7.31 (m, 2H), 7.30-7.25 (m,3H), 5.98 (s, 1H), 4.11-3.99 (m, 2H), 3.11 (t, J = 6.9 Hz, 2H). ¹³C NMR(125 MHz, CDCl₃) δ 159.6, 158.7, 150.8, 150.3, 150.2, 139.0, 135.8,134.4, 132.9, 129.0, 128.9, 126.8, 126.0, 123.3, 120.5, 113.9, 42.6,35.4, ESI-MS m/z: 327 (M + H)⁺ 61

334 0.251 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.73 (s, 1H), 8.81 (d, J = 7.7Hz, 1H), 8.70 (d, J = 3.4 Hz, 1H), 7.95 (d, J = 8.2 Hz, 1H), 7.81- 7.57(m, 2H), 7.52-7.32 (m, 2H), 5.69 (d, J = 0.8 Hz, 1H), 4.52-4.27 (m, 1H),3.40 (s, 3H), 3.31-3.13 (m, 1H), 2.35 (d, J = 12.5 Hz, 2H), 2.18 (d, J =11.3 Hz, 2H), 1.61-1.22 (m, 4H). ¹³C NMR (125 MHz, CDCl₃) δ 159.1,158.7, 150.8, 150.3, 135.8, 134.3, 132.8, 128.9, 125.9, 123.3, 120.6,113.8, 78.4, 56.0, 49.7, 30.6, 30.4, ESI-MS m/z: 335 (M + H)⁺ 62

306 0.891 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.72 (s, 1H), 8.80 (dt, J =7.9, 1.9 Hz, 1H), 8.68 (d, J = 3.7 Hz, 1H), 7.93 (d, J = 8.3 Hz, 1H),7.80 (d, J = 8.2 Hz, 1H), 7.78- 7.73 (m, 1H), 7.50-7.44 (m, 1H), 7.41(dd, J = 7.8, 4.8 Hz, 1H), 6.18 (d, J = 7.1 Hz, 1H), 4.68-4.59 (m, 1H),4.01 (dd, J = 11.5, 2.7 Hz, 1H), 3.89-3.80 (m, 1H), 3.80-3.66 (m, 2H),2.08-2.00 (m, 3H), 1.95-1.83 (m, 1H), 1.73-1.61 (m, 1H). ¹³C NMR (125MHz, CDCl₃) δ 159.0, 158.6, 150.7, 150.3, 150.2, 135.9, 134.4, 133.0,128.9, 126.1, 123.3, 120.7, 113.9, 71.5, 68.6, 46.5, 27.8, 23.0, ESI-MSm/z: 307 (M + H)⁺ 63

332 0.282 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.76 (s, 1H), 8.86-8.78 (m,1H), 8.69 (d, J = 4.1 Hz, 1H), 7.92 (dd, J = 7.9, 5.4 Hz, 1H), 7.79-7.67(m, 2H), 7.48-7.37 (m, 2H), 5.84 (s, 1H), 3.86- 3.75 (m, 2H), 1.83 (d, J= 12.3 Hz, 2H), 1.76-1.60 (m, 5H), 1.50-1.38 (m, 1H), 1.33-1.12 (m, 3H),1.08-0.96 (m, 2H). ¹³C NMR (125 MHz, CDCl₃) δ 159.7, 158.8. 150.7,150.4, 150.3, 135.8. 135.7, 134.5, 132.8, 132.7, 128.9, 128.9, 125.9,123.2, 120.6, 114.0, 39.4, 37.0, 35.7, 33.4, 26.6, 26.3, ESI-MS m/z: 333(M + H)⁺ 64

302 2.24 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.75 (s, 1H), 8.83 (d, J = 7.9Hz, 1H), 8.69 (d, J = 3.6 Hz, 1H), 8.06 (d, J = 8.1 Hz, 1H), 7.96 (d, J= 8.3 Hz, 1H), 7.81-7.70 (m, 1H), 7.51-7.44 (m, 1H), 7.41 (dd, J = 7.9,4.8 Hz, 1H), 4.90 (s, 2H), 2.07-1.92 (m, 4H), 1.59 (d, J = 7.1 Hz, 4H).¹³C NMR (125 MHz, CDCl₃) δ 162.5, 158.0, 151.7, 150.8, 150.3, 135.8,134.2, 132.8, 128.6, 125.6, 125.0, 123.3, 116.5, 60.1, 29.3, ESI-MS m/z:303 (M + H)⁺ 65

340 0.316 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.72 (s, 1H), 8.80 (d, J = 7.8Hz, 1H), 8.70 (d, J = 2.6 Hz, 1H), 7.95 (d, J = 8.3 Hz, 1H), 7.80- 7.75(m, 1H), 7.73 (d, J = 8.1 Hz, 1H), 7.47 (t, J = 7.5 Hz, 1H), 7.43 (dd, J= 7.7, 4.8 Hz, 1H), 5.70 (d, J = 6.2 Hz, 1H), 4.60- 4.45 (m, 1H), 2.32(d, J = 12.6 Hz, 2H), 2.28-2.12 (m, 2H), 2.12-1.93 (m, 2H), 1.85-1.70¹³C NMR (125 MHz, CDCl₃) δ 159.1, 158.5, 150.8, 150.3, 150.1, 135.8,134.3, 133.1, 129.0, 126.2, 123.6 (q, J_(C-F) = 241 Hz), 123.4, 120.5,113.8, 48.1, 32.5 (t, J_(C-F) = 24.7 Hz), 28.6 (d, J_(C-F) = 9.2 Hz)ESI-MS m/z: 341 (M + H)⁺ 66

352 0.006 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.75 (s, 1H), 8.82 (d, J = 7.9Hz, 1H), 8.68 (d, J = 3.7 Hz, 1H), 7.95 (d, J = 8.3 Hz, 1H), 7.75 (t, J= 7.7 Hz, 1H), 7.70 (d, J = 8.1 Hz, 1H), 7.47-7.42 (m, 1H), 7.41 (dd, J= 7.9, 4.8 Hz, 1H), 7.24-7.11 (m, 4H), 5.87 (d, J = 5.2 Hz, 1H),5.00-4.87 (m, 1H), 3.43 (dd, J = 16.2, 5.0 Hz, 1H), 3.12-2.88 (m, 3H),2.40- 2.30 (m, 1H), 2.13-2.01 (m, 1H). ¹³C NMR (125 MHz, CDCl₃) δ 159.2,158.7, 150.8, 150.2, 135.8, 135.7, 134.3, 134.1, 132.9, 129.7, 129.1,128.9, 126.4, 126.2, 126.0, 123.3, 120.7.113.9, 47.1, 35.8, 28.5, 27.5,ESI-MS m/z: 353 (M + H)⁺ 67

338 0.891 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.78 (d, J = 1.5 Hz, 1H), 8.84(dt, J = 7.9, 1.9 Hz, 1H), 8.67 (dd, J = 4.8, 1.6 Hz, 1H), 7.95 (d, J =8.4 Hz, 1H), 7.80-7.73 (m, 1H), 7.70 (d, J = 8.0 Hz, 1H), 7.50-7.37 (m,3H), 7.35 (d, J = 7.5 Hz, 1H), 7.33-7.28 (m, 1H), 7.26-7.20 (m, 2H),6.17 (q, J = 7.4 Hz, 1H), 6.02 (d, J = 7.5 Hz, 1H), 3.12 (ddd, J = 15.8,8.7, 4.0 Hz, 1H), 3.04 (dt, J = 16.0, 8.0 Hz, 1H), 2.92-2.83 (m, 1H),2.16-2.01 (m, 1H). ¹³C NMR (125 MHz, CDCl₃) δ 159.5, 158.8, 150.8,150.5, 150.3, 143.9, 143.4, 135.8, 134.5, 132.9, 129.0, 128.4, 127.0,126.0, 125.2, 124.3, 123.3, 120.7, 113.8, 56.5, 34.1, 30.5, ESI-MS m/z:339 (M + H)⁺ 68

352 1.12 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.78 (d, J = 0.9 Hz, 1H), 8.89(d, J = 7.8 Hz, 1H), 8.69 (d, J = 3.5 Hz, 1H), 8.00 (d, J = 7.8 Hz, 1H),7.83-7.73 (m, 1H), 7.68 (d, J = 8.0 Hz, 1H), 7.51-7.41 (m, 2H), 7.39 (d,J = 7.6 Hz, 1H), 7.25-7.22 (m, 1H), 7.22- 7.15 (m, 2H), 6.02 (s, 1H),5.94- 5.86 (m, 1H), 3.00-2.80 (m, 2H), 2.34-2.23 (m, 1H), 2.20- 2.12 (m,1H), 2.00-1.93 (m, 2H). ¹³C NMR (125 MHz, CDCl₃) δ 159.0, 158.7, 150.6,150.2, 138.1, 136.8, 136.1, 133.0, 129.5, 129.1, 128.8, 127.7, 126.6,126.1, 123.4, 120.7, 113.8, 49.2, 29.6, 29.5, 20.2, ESI-MS m/z: 353 (M +H)⁺ 69

327 1.12 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.75 (d, J = 1.2 Hz, 1H), 8.82(dt, J = 7.9, 1.9 Hz, 1H), 8.70- 8.66 (m, 1H), 8.51 (s, 1H), 8.47 (d, J= 4.1 Hz, 1H), 7.93 (d, J = 8.2 Hz, 1H), 7.77-7.72 (m, 1H), 7.68 (d, J =8.1 Hz, 1H), 7.59 (d, J = 7.8 Hz, 1H), 7.46- 7.38 (m, 2H), 7.24 (dd, J =7.7, 4.9 Hz, 1H), 6.28 (t, J = 5.3 Hz, 1H), 4.10-3.96 (m, 2H), 3.13 (t,J = 7.0 Hz, 2H). ¹³C NMR (125 MHz, CDCl₃) δ 159.7, 158.6, 150.7, 150.2,150.1, 148.1, 136.6, 135.8, 134.7, 134.4, 133.0, 128.9, 126.2, 123.8,123.4, 120.7, 113.9, 42.4, 32.6, ESI-MS m/z: 328 (M + H)⁺ 70

327 5.01 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.77 (d, J = 1.4 Hz, 1H), 8.83(dt, J = 7.9, 1.9 Hz, 1H), 8.68 (dd, J = 4.8, 1.7 Hz, 1H), 7.91 (d, J =8.0 Hz, 1H), 7.73 (ddd, J = 8.3, 7.0, 1.3 Hz, 1H), 7.57 (d, J = 7.8 Hz,1H), 7.46-7.37 (m, 2H), 7.07 (d, J = 8.3 Hz, 2H), 6.72-6.62 (m, 2H),5.96-5.87 (m, 1H), 4.03-3.94 (m, 2H), 2.98 (t, J = 6.9 Hz, 2H). ¹³C NMR(125 MHz, CDCl₃) δ 159.6, 158.8, 150.7, 150.3, 145.1, 135.8, 134.5,132.8, 129.8, 128.9, 128.8, 125.9, 123.3, 120.6, 115.6, 114.0, 42.8,34.5, ESI-MS m/z: 328 (M + H)⁺ 71

341 2.00 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.74 (d, J = 1.5 Hz, 1H), 8.80(dt, J = 7.9, 1.9 Hz, 1H), 8.66 (dd, J = 4.8, 1.7 Hz, 1H), 8.61 (d, J =4.8 Hz, 1H), 7.88 (d, J = 8.3 Hz, 1H), 7.76 (d, J = 7.9 Hz, 1H),7.73-7.67 (m, 1H), 7.63 (td, J = 7.7, 1.8 Hz, 1H), 7.47- 7.41 (m, 1H),7.38 (dd, J = 7.9, 4.8 Hz, 1H), 7.22 (d, J = 7.8 Hz, 1H), 7.18 (dd, J =7.4, 5.0 Hz, 1H), 4.26-4.03 (m, 2H), 3.30- 3.09 (m, 2H). ¹³C NMR (125MHz, CDCl₃) δ 160.2, 159.7, 158.8, 150.7, 150.3, 150.2, 149.2, 137.1,135.8, 134.6, 132.7, 128.7, 125.9, 123.8, 123.2, 121.9, 121.1, 114.3,40.7, 36.2, ESI-MS m/z: 342 (M + H)⁺ 72

365 1.28 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.80 (d, J = 1.4 Hz, 1H), 8.83(dt, J = 7.9, 1.9 Hz, 1H), 8.69 (dd, J = 4.7, 1.3 Hz, 1H), 8.26 (s, 1H),7.91 (d, J = 8.3 Hz, 1H), 7.74-7.70 (m, 1H), 7.69 (d, J = 7.9 Hz, 1H),7.50 (d, J = 8.1 Hz, 1H), 7.44-7.39 (m, 2H), 7.37 (t, J = 7.5 Hz, 1H),7.24 (t, J = 7.6 Hz, 1H), 7.15 (t, J = 7.4 Hz, 1H), 7.10 (d, J = 1.8 Hz,1H), 5.96 (s, 1H), 4.21-4.03 (m, 2H), 3.26 (t, J = 6.6 Hz, 2H). ¹³C NMR(125 MHz, CDCl₃) δ 159.7, 158.9, 150.7, 150.4, 150.3, 136.6, 135.8,134.6, 132.8, 128.9, 127.5, 125.9, 123.3, 122.5, 122.3, 120.6, 119.7,118.8, 114.0, 113.2, 111.5, 41.7, 25.1 ESI-MS m/z: 366 (M + H)⁺ 73

340 1.78 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.78 (s, 1H), 8.84 (d, J = 7.9Hz, 1H), 8.69 (d, J = 3.8 Hz, 1H), 7.93 (d, J = 8.3 Hz, 1H), 7.80- 7.68(m, 1H), 7.59 (d, J = 8.1 Hz, 1H), 7.48-7.37 (m, 2H), 7.22-7.11 (m, 4H),5.91 (s, 1H), 4.09-3.95 (m, 2H), 3.06 (t, J = 6.9 Hz, 2H), 2.35 (s, 3H).¹³C NMR (125 MHz, CDCl₃) δ 159.6, 158.7, 150.8, 150.3, 150.2, 136.3,135.9, 135.8, 134.5, 132.8, 129.6, 128.9, 128.8, 126.0, 123.3, 120.5,114.0, 42.7, 35.0, 21.1 ESI-MS m/z: 341 (M + H)⁺ 74

333 NA ¹H NMR (500 MHz, CDCl₃) δ 9.74 (d, J = 1.7 Hz, 1H), 8.80 (dt, J =7.9, 1.9 Hz, 2H), 8.67 (dd, J = 4.8, 1.6 Hz, 1H), 7.88 (d, J = 8.2 Hz,1H), 7.76-7.65 (m, 1H), 7.61 (d, J = 8.0 Hz, 1H), 7.47-7.33 (m, 2H),4.18- 4.02 (m, 1H), 3.78-3.63 (m, 1H), 3.30-3.13 (m, 1H), 2.63 (s, 1H),2.48 (s, 3H), 2.37-2.27 (m, 1H), 2.17-2.04 (m, 1H), 2.04-1.68 (m, 6H).¹³C NMR (125 MHz, CDCl₃) δ 159.8, 159.1, 150.6, 150.3, 150.3, 135.7,134.8, 132.4, 128.7, 125.7, 123.2, 121.1, 114.6, 65.5, 57.2, 40.8, 38.5,27.9, 27.8, 22.9 ESI-MS m/z: 334 (M + H)⁺ 75

366 1.58 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.71 (d, J = 1.1 Hz, 1H), 8.80(d, J = 7.9 Hz, 1H), 8.67 (dd, J = 4.8, 1.6 Hz, 1H), 8.07-7.92 (m, 2H),7.79-7.66 (m, 1H), 7.45- 7.34 (m, 2H), 7.17 (s, 4H), 5.09- 4.95 (m, 1H),3.38 (s, 3H), 3.24 (d, J = 8.5 Hz, 2H), 3.13- 2.99 (m, 2H), 2.30-2.21(m, 1H), 2.21-2.08 (m, 1H). ¹³C NMR (125 MHz, 164.3, 157.3, 150.7,150.2, 135.9, 135.7, 135.2, 134.2, 132.5, 129.5, 128.9, 128.7, 126.3,126.1, 125.4, 124.8, 123.3, 115.4, 56.6, 34.3, 32.2, 29.7, 27. ESI-MSm/z: 367 (M + H)⁺ 76

332 0.028 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.75 (d, J = 1.4 Hz, 1H), 8.82(d, J = 7.9 Hz, 1H), 8.69 (dd, J = 4.7, 1.4 Hz, 1H), 7.92 (d, J = 8.3Hz, 1H), 7.76-7.72 (m, 1H), 7.70 (d, J = 8.1 Hz, 1H), 7.51- 7.35 (m,2H), 5.73 (d, J = 6.2 Hz, 1H), 4.73-4.56 (m, 1H), 2.18-2.00 (m, 2H),2.00-1.43 (m, 12H). ¹³C NMR (125 MHz, CDCl₃) δ 158.8, 158.6, 150.7,150.3, 150.2, 135.8, 134.5, 132.7, 128.9, 125.8, 123.3, 120.5, 114.0,51.0, 32.7, 27.2, 26.1, 24.2 ESI-MS m/z: 333 (M + H)⁺ 77

318 0.020 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.75 (s, 1H), 8.80 (d, J = 7.8Hz, 1H), 8.69 (s, 1H), 7.92 (d, J = 8.3 Hz, 1H), 7.77-7.71 (m, 1H), 7.70(d, J = 8.2 Hz, 1H), 7.53-7.33 (m, 2H), 5.63 (d, J = 5.3 Hz, 1H),4.38-4.26 (m, 1H), 2.28 (d, J = 9.9 Hz, 2H), 1.84 (d, J = 12.6 Hz, 2H),1.54- 1.40 (m, 1H), 1.40-1.30 (m, 2H), 1.30- 1.14 (m, 3H), 0.98 (d, J =6.5 Hz, 3H). ¹³C NMR (125 MHz, CDCl₃) δ 159.0, 158.8, 150.8, 150.5,150.4, 135.7, 134.6, 132.7, 129.0, 125.7, 123.2, 120.5, 113.9, 50.4,34.1, 33.1, 32.3, 22.3 ESI-MS m/z: 319 (M + H)⁺ 78

316 0.355 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.75 (s, 1H), 8.82 (dt, J =7.9, 1.8 Hz, 1H), 8.68 (d, J = 3.9 Hz, 1H), 7.91 (d, J = 8.3 Hz, 1H),7.75-7.71 (m, 1H), 7.69 (d, J = 8.2 Hz, 1H), 7.49-7.35 (m, 2H), 5.64 (d,J = 5.5 Hz, 1H), 4.27-4.16 (m, 1H), 2.51 (d, J = 4.1 Hz, 1H), 2.39 (s,1H), 2.05 (ddd, J = 13.2, 7.9, 2.2 Hz, 1H), 1.73-1.61 (m, 1H), 1.61-1.53(m, 1H), 1.51 (d, J = 10.1 Hz, 1H), 1.48-1.36 (m, 2H), 1.34- 1.20 (m,2H). ¹³C NMR (125 MHz, CDCl₃) δ 158.9, 158.7, 150.7, 150.3, 150.2,135.8, 134.5, 132.7, 128.9, 125.8, 123.3, 120.5, 113.9, 55.1, 42.1,41.0, 36.0, 35.9, 28.3, 26.7 ESI-MS m/z: 317 (M + H)⁺ 79

356 1.12 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.73 (d, J = 1.6 Hz, 1H), 8.83(d, J = 7.8 Hz, 1H), 8.69 (dd, J = 4.7, 1.5 Hz, 1H), 7.92 (d, J = 8.1Hz, 1H), 7.80-7.69 (m, 1H), 7.66 (d, J = 8.1 Hz, 1H), 7.51- 7.32 (m,2H), 5.58 (s, 1H), 2.38 (d, J = 2.3 Hz, 6H), 2.25-2.18 (m, 3H),1.88-1.74 (m, 6H). ¹³C NMR (125 MHz, CDCl₃) δ 159.0, 158.1, 150.7,150.3, 135.8, 134.5, 132.6, 128.9, 125.9, 123.3, 120.6, 114.2, 53.6,41.7, 36.7, 29.7 ESI-MS m/z: 357 (M + H)⁺ 80

352 0.006 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.75 (s, 1H), 8.82 (d, J = 7.9Hz, 1H), 8.68 (d, J = 3.7 Hz, 1H), 7.95 (d, J = 8.3 Hz, 1H), 7.75 (t, J= 7.7 Hz, 1H), 7.70 (d, J = 8.1 Hz, 1H), 7.47-7.42 (m, 1H), 7.41 (dd, J= 7.9, 4.8 Hz, 1H), 7.24-7.11 (m, 4H), 5.87 (d, J = 5.2 Hz, 1H),5.00-4.87 (m, 1H), 3.43 (dd, J = 16.2, 5.0 Hz, 1H), 3.12-2.88 (m, 3H),2.40- 2.30 (m, 1H), 2.13-2.01 (m, 1H). ¹³C NMR (125 MHz, CDCl₃) δ 159.2,158.7, 150.8, 150.2, 135.8, 135.7, 134.3, 134.1, 132.9, 129.7, 129.1,128.9, 126.4, 126.2, 126.0, 123.3, 120.7, 113.9, 47.1, 35.8, 28.5, 27.5ESI-MS m/z: 353 (M + H)⁺ 81

352 0.010 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.75 (s, 1H), 8.82 (d, J = 7.9Hz, 1H), 8.68 (d, J = 3.7 Hz, 1H), 7.95 (d, J = 8.3 Hz, 1H), 7.75 (t, J= 7.7 Hz, 1H), 7.70 (d, J = 8.1 Hz, 1H), 7.47-7.42 (m, 1H), 7.41 (dd, J= 7.9, 4.8 Hz, 0H), 7.24-7.11 (m, 4H), 5.87 (d, J = 5.2 Hz, 1H),5.00-4.87 (m, 1H), 3.43 (dd, J = 16.2, 5.0 Hz, 1H), 3.12-2.88 (m, 3H),2.40- 2.30 (m, 1H), 2.13-2.01 (m, 1H). ¹³C NMR (125 MHz, CDCl₃) δ 159.2,158.7, 150.8, 150.2, 135.8, 135.7, 134.3, 134.1, 132.9, 129.7, 129.1,128.9, 126.4, 126.2, 126.0, 123.3, 120.7, 113.9, 47.1, 35.8, 28.5, 27.5ESI-MS m/z: 353 (M + H)⁺ 82

366 Weak (act) ¹H NMR (500 MHz, CDCl₃) δ 9.68 (s, 1H), 8.73 (d, J = 7.9Hz, 1H), 8.61 (d, J = 3.9 Hz, 1H), 7.87 (dd, J = 17.0, 8.3 Hz, 2H), 7.66(t, J = 7.6 Hz, 1H), 7.38- 7.27 (m, 4H), 7.26-7.18 (m, 3H), 4.58-4.45(m, 2H), 3.24- 3.13 (m, 2H), 3.08-2.98 (m, 1H), 2.12 (d, J = 12.3 Hz,1H), 1.96-1.73 (m, 3H). 13C NMR (125 MHz, CDCl₃) δ 165.0, 157.7, 152.8,150.8, 150.3, 143.5, 135.7, 134.3, 132.6, 129.0, 128.8, 127.2, 126.9,125.3, 125.2, 123.2, 115.8, 56.6, 50.8, 42.8, 32.2, 25.9 ESI-MS m/z: 367(M + H)⁺ 83

380 2.24 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.72 (s, 1H), 8.76 (d, J = 7.9Hz, 1H), 8.69 (d, J = 4.6 Hz, 1H), 7.90 (d, J = 8.4 Hz, 1H), 7.73 (d, J= 8.3 Hz, 1H), 7.70 (d, J = 7.0 Hz, 1H), 7.40 (dd, J = 7.8, 4.9 Hz, 1H),7.36 (d, J = 7.1 Hz, 1H), 7.22-7.08 (m, 5H), 5.03 (d, J = 5.1 Hz, 1H),4.30 (d, J = 13.2 Hz, 1H), 3.68-3.55 (m, 1H), 3.26 (dd, J = 13.5, 6.6Hz, 1H), 3.09 (dd, J = 13.5, 8.8 Hz, 1H), 2.05-1.54 (m, 6H). ¹³C NMR(125 MHz, CDCl₃) δ 165.2, 157.7, 152.9, 150.7, 150.4, 139.0, 135.7,134.5, 132.4, 129.2, 128.8, 128.5, 126.4, 125.1, 124.7, 123.2, 115.6,58.0, 45.4, 35.8, 27.3, 25.9, 19.5 ESI-MS m/z: 381 (M + H)⁺ 84

366 0.50 Inhibitor ¹H NMR (500 MHz, CDCl₃) δ 9.71 (d, J = 1.1 Hz, 1H),8.80 (d, J = 7.9 Hz, 1H), 8.67 (dd, J = 4.8, 1.6 Hz, 1H), 8.07-7.92 (m,2H), 7.79-7.66 (m, 1H), 7.45- 7.34 (m, 2H), 7.17 (s, 4H), 5.09- 4.95 (m,1H), 3.38 (s, 3H), 3.24 (d, J = 8.5 Hz, 2H), 3.13- 2.99 (m, 2H),2.30-2.21 (m, 1H), 2.21-2.08 (m, 1H). ¹³C NMR (125 MHz, CDCl₃) δ 164.3,157.3, 150.7, 150.2, 135.9, 135.7, 135.2, 134.2, 132.5, 129.5, 128.9,128.7, 126.3, 126.1, 125.4, 124.8, 123.3, 115.4, 56.6, 34.3, 32.2, 29.7,27.2 ESI-MS m/z: 367 (M + H)⁺ 85

332 0.46 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.74 (s, 1H), 8.80 (d, J = 7.9Hz, 1H), 8.69 (d, J = 3.7 Hz, 1H), 7.90 (s, 1H), 7.79-7.63 (m, 2H), 7.45(s, 1H), 7.41 (d, J = 3.1 Hz, 1H), 5.66 (d, J = 5.5 Hz, 1H), 4.43-4.25(m, 1H), 2.16- 2.00 (m, 2H), 1.64-1.38 (m, 6H), 1.01 (d, J = 3.0 Hz,6H). ¹³C NMR (125 MHz, CDCl₃) δ 159.0, 158.8, 150.8, 150.4, 135.7,134.5, 132.7, 129.0, 125.8, 123.2, 120.6, 113.9, 50.3, 37.9, 31.8, 29.9,28.7, 25.2 ESI-MS m/z: 366 (M + H)⁺ 86

318 0.079 (inh) 1:1 mixture ESI-MS m/z: 319 (M + H)⁺ 87

380 2.51 (act) ¹H NMR (500 MHz, CDCl₃) δ 9.70 (s, 1H), 8.68 (d, J = 7.6Hz, 2H), 7.92 (d, J = 8.2 Hz, 1H), 7.71-7.59 (m, 2H), 7.38 (d, J = 4.8Hz, 1H), 7.36-7.29 (m, 2H), 7.24 (t, J = 8.2 Hz, 2H), 7.21 (d, J = 7.1Hz, 2H), 4.43 (dd, J = 30.6, 13.0 Hz, 2H), 3.30- 3.14 (m, 1H), 2.91 (dd,J = 13.0, 10.7 Hz, 1H), 2.69 (dd, J = 13.5, 6.5 Hz, 1H), 2.60 (dd, J =13.5, 8.1 Hz, 1H), 2.24-2.08 (m, 1H), 2.06-1.95 (m, 1H), 1.95-1.84 (m,1H), 1.84-1.67 ¹³C NMR (125 MHz, CDCl₃) δ 164.6, 157.6, 152.7, 150.7,150.3, 139.8, 135.7, 132.5, 129.1, 128.8, 128.6, 126.3, 125.1, 125.0,123.3, 115.5, 55.6, 50.6, 40.7, 38.6, 31.7, 25.7 ESI-MS m/z: 381 (M +H)⁺ (m, 1H), 1.48-1.30 (m, 1H). 88

366 Weak (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.71 (d, J = 1.1 Hz, 1H), 8.80(d, J = 7.9 Hz, 1H), 8.67 (dd, J = 4.8, 1.6 Hz, 1H), 8.07-7.92 (m, 2H),7.79-7.66 (m, 1H), 7.45- 7.34 (m, 2H), 7.17 (s, 4H), 5.09- 4.95 (m, 1H),3.38 (s, 3H), 3.24 (d, J = 8.5 Hz, 2H), 3.13- 2.99 (m, 2H), 2.30-2.21(m, 1H), 2.21-2.08 (m, 1H). ¹³C NMR (125 MHz, CDCl₃) δ 164.3, 157.3,150.7, 150.2, 135.9, 135.7, 135.2, 134.2, 132.5, 129.5, 128.9, 128.7,126.3, 126.1, 125.4, 124.8, 123.3, 115.4, 56.6, 34.3, 32.2, 29.7, 27.2ESI-MS m/z: 367 (M + H)⁺ 89

464 0.168 (inh) ¹H NMR (500 MHz, CDCl₃) δ 9.77 (d, J = 1.7 Hz, 1H), 8.80(dt, J = 7.9, 1.8 Hz, 1H), 8.68 (dd, J = 4.8, 1.5 Hz, 1H), 7.92 (d, J =8.3 Hz, 1H), 7.78-7.71 (m, 1H), 7.69 (d, J = 8.1 Hz, 1H), 7.62 (s, 1H),7.53 (d, J = 7.9 Hz, 1H), 7.45-7.37 (m, 2H), 7.03 (d, J = 7.9 Hz, 1H),6.03 (d, J = 6.7 Hz, 1H), 5.32- 5.25 (m, 1H), 3.54 (td, J = 16.4, 7.1Hz, 2H), 3.04 (td, J = 15.9, 4.7 Hz, 2H). ¹³C NMR (125 MHz, CDCl₃) δ159.3, 158.6, 150.9, 150.4, 150.3, 143.9, 140.9, 136.0, 135.7, 134.4,134.1, 132.9, 129.0, 126.9, 126.0, 123.3, 120.7, 113.9, 92.0, 52.5,39.9, 39.9 ESI-MS m/z: 465 (M + H)⁺

Example 7—Design and Synthesis of Potent Quinazolines as Selectiveβ-Glucocerebrosidase Modulators

Abstract

Gaucher's disease is a common genetic disease caused by mutations in theβ-glucocerebrosidase (GBA1) gene that have been also linked to increasedrisk of Parkinson's disease and Lewy Body Dementia. Stabilization ofmisfolded mutant β-glucocerebrosidase (GCase) represents an importanttherapeutic strategy in synucleinopathies. Here we report a novel classof GCase quinazoline inhibitors, obtained in a high throughputscreening, with moderate potency against wild-type GCase. Rationaldesign and a SAR study of this class of compounds led to a new series ofquinazoline derivatives with single digit nanomolar potency. Thesecompounds were shown to selectively stabilize GCase when compared toother lysosomal enzymes and to increase N370S mutant GCase proteinconcentration and activity in cell assays. To the best of our knowledge,these molecules are the most potent non-iminosugar GCase inhibitors todate that may prove useful for future mechanistic and preclinicalstudies in Gaucher's and Parkinson's diseases.

Introduction

Gaucher's disease (GD), the most common lysosomal storage disease, iscaused by a recessively inherited deficiency in β-glucocerebrosidase(GCase) and subsequent accumulation of glucoceramides, toxic lipidsubstrates^(1,2). Substrate accumulation leads to hepatosplenomegaly,bone marrow suppression, and bone lesions^(1,3). Many of the GCasemutations are missense mutations⁴ that result in single amino acidsubstitutions of the enzyme. Most of these mutations, including theprevalent N370S mutation, are still functional, although with very lowresidual GCase activity⁵ due to enzyme misfolding, andproteasome-mediated breakdown⁵. Current treatments for GD include enzymereplacement therapy (ERT) and substrate reduction therapy (SRT)^(2,6).In recent years, mutations in GBA1 were also found to be a major riskfactor for Parkinson's disease (PD) and dementia with Lewy bodies(DLB)⁷⁻¹¹. Accumulation of β-glucosylceramide, the substrate of GCase,in neurons promotes the formation of α-synuclein oligomers, which areconsidered toxic in PD¹². Enhancement of GCase activity is thought to bea potential therapeutic strategy for GCase-associated synucleinopathies,including PD^(13,14).

An emerging therapeutic approach involves the restoration of properfolding and lysosome delivery of degradation-prone mutant enzymes usingsmall molecules as pharmacological chaperones (PCs)⁵. Previous studieshave shown that iminosugars increase the cellular activity of the N370Smutant form of GCase^(15,16) as well as of the wild-type enzyme^(5,17).Isofagomine (IFG, 1) attracted the most attention in the iminosugarclass of compounds (FIG. 1)¹⁸. However, iminosugars tend to have poorselectivity and relatively short half-lives in cells¹⁹. Severaldifferent scaffolds of non-iminosugar inhibitors (2 and 3 are examplesin FIG. 1) have been reported as GCase PCs since 2007²⁰⁻²⁴; however, themechanism of these non-iminosugar PCs remains unknown.

In our high throughput screening effort to discover potent GCasemodulators, compound 4 (FIG. 1) was identified as a potent GCaseinhibitor (IC₅₀ 0.177 μM) in a 4-methylumbelliferyl β-D-glucopyranoside(4MU-β-Glc) enzyme activity based high throughput screen. The activitywas confirmed with additional synthesized compounds. To further developpotent GCase inhibitors and use them for in vitro mechanistic studies,we carried out a structure activity relationship (SAR) study of a seriesof quinazoline derivatives, leading to the discovery of single digitnanomolar potency GCase inhibitory modulators.

Chemistry

The synthesis of compound 4 and its analogues for SAR exploration isstraightforward and is detailed in Schemes 1 and 2 below. As showed inScheme 1, 5 was prepared from 2-amino-benzonitrile and nicotinoylchloride according to a known method²⁵. The reaction of 5 andappropriate amines in the presence of potassium carbonate as a baseafforded 4, 6a-6i, 7a-7i, 8a-8g, and 9a-9f.

Scheme 1. Synthesis of 4, 6a-6i, 7a-7i, 8a-8g, and 9a-9f withSubstituents on the Secondary Amine

Reagents and conditions: (a) (i) sulfolane (ii) PCl₅; (b) RNH₂, K₂CO₃,DMF

Additional analogues having modifications at position 2 of thequinazoline ring were synthesized, employing alkylation of2,3-dihydro-1H-inden-2-amine with 2,4-dichloroquinazoline, followed bySuzuki coupling with appropriate boronic acids to afford 11a-11h (Scheme2). The structure and purity of all the prepared compounds wereconfirmed by spectroscopic and analytical techniques.

Scheme 2. Synthesis of 11a-11h with Modifications at the 2-Position ofthe Quinazoline Ring

Reagents and conditions: (a) 2,3-dihydro-1H-inden-2-amine, K₂CO₃, DMF;(b) RB(OH)₂, Pd(PPh₃)₄, K₂CO₃, 1,4-dioxane, H₂O.

Results and Discussion

In our high throughput screening efforts to discover potent GCaseinhibitors/activators, we used recombinant wild-type GCase and 4MU-β-Glcas substrate in an optimized pH 5.9 buffer²⁶. In previous studies, highconcentrations of taurocholate (4-10 mM) were used to improve the signalin GCase enzyme activity assays^(16,27,28). We found that taurocholatecan interfere with our assay results, which was also reported recentlyby Berger et al.²⁹; therefore, we excluded taurocholate in our screeningassay. Using this approach, we discovered several different scaffolds ofGCase inhibitors and activators with moderate activity. Among these, weidentified a quinazoline compound (4, FIG. 1) as a potent GCaseinhibitor. The quinazoline ring had previously been found as the bestscaffold for GCase inhibitors among several ring systems assayed²¹. Herewe describe our modifications of the substituents on the quinazolinering.

To examine the SAR at the amino group, a series of substituents wasintroduced at the 4-position of the N-cyclohexyl ring of 4 (Table 1). A4-methyl substituent (6a, cis/trans=3/2 mixture) resulted in 3-foldhigher activity (IC₅₀ 56 nM), while 4-ethyl substitution (6b,cis/trans=3/2 mixture) did not show a significant change of activity,suggesting that a smaller hydrophobic group at this position may bebeneficial. Then, a trans-4-methyl compound (6c) was synthesized, whichexhibited great improvement of inhibitory activity (IC₅₀ 20 nM). Furthermodification by installation of 4-methoxyl (6d), 4,4-dimethyl (6e), or4,4-difluoro (6f) groups at the same position decreased the potency;amino substituents were detrimental to activity. Replacement of thecyclohexyl group by tetrahydro-2H-pyran-3-yl (6h), or N-substitutedpiperidine (6i-6k) afforded weak or inactive compounds, supporting theimportance of the lipophilic cyclohexyl ring.

TABLE 1 Structure and inhibitory activity of 2-(pyridin-3-yl)quinazolinederivatives with substituted cyclohexyl and related rings^(a)

Comp. R IC₅₀ (μM) 4

0.177 ± 0.012 6a

0.056 ± 0.005 6b

0.126 ± 0.007 6c

0.020 ± 0.002 6d

0.251 ± 0.018 6e

0.431 ± 0.042 6f

0.234 ± 0.017 6g

Inactive 6h

0.891 ± 0.023 6i

Inactive 6j

33.21 ± 9.71 6k

36.07 ± 8.72 ^(a)Experiments were performed in triplicate, and the mean± SD is shown.

Results and Discussion

To further expand the SAR of the amino group, the cyclohexyl ring of 4was replaced by a series of saturated carbon rings of different sizes. Adramatic SAR was observed with different carbon rings (7a-7e). As shownin Table 2, the larger cycloalkyl rings were more potent; the compoundwith a cyclooctyl group (7a, IC₅₀ 27 nM) was the most potent. However,when bulk was introduced to the cycloalkyl ring, the potency of thecompounds (7f and 7g) decreased, suggesting that the hydrophobic bindingpocket may be compact. Introduction of one or two carbons between thecyclohexyl and NH groups (7h and 7i) in 4 decreased the inhibitoryactivity, again indicating a hydrophobic pocket with limited volume.

TABLE 2 Structure and inhibitory activity of 2-(pyridin-3-yl)quinazolinederivatives with saturated alkyl rings^(a)

Comp. R IC₅₀ (μM) 7a

0.027 ± 0.002 7b

0.042 ± 0.003 7c

 0.72 ± 0.05 7d

 2.84 ± 0.34 7e

28.07 ± 3.21 7f

0.926 ± 0.08 7g

0.282 ± 0.043 7h

0.405 ± 0.040 7i

0.857 ± 0.033 ^(a)Experiments were performed in triplicate, and the mean± SD is shown.

To understand the nature of the binding site, a phenyl ring withdifferent length linkers was introduced into the molecules (8a-e, Table3). Compound 8a, by replacement of the cyclohexyl ring in 4 with aphenyl ring, lost activity. Insertion of a 1-4 carbon linker between thephenyl and quinazoline rings gave 8b-8e. Interestingly, 8c, with aphenylethyl group, was slightly more potent than 4. Extension of thelinker did not benefit activity, suggesting that a two carbon lengthlinker between the phenyl ring and secondary amino group of 8c may allowoptimal binding of the phenyl group. Substitution of the phenyl group in8 with a 2- or 3-pyridine ring (8f or 8g) sharply diminished potency,indicating a repulsive effect of the pyridine nitrogen atom.

TABLE 3 Structure and inhibitory activity of 2-(pyridin-3-yl)quinazolinederivatives with aromatic rings^(a)

Comp. R IC₅₀ (μM) 8a

inactive 8b

 5.77 ± 0.82 8c

0.097 ± 0.009 8d

 1.53 ± 0.22 8e

 1.28 ± 0.13 8f

 1.40 ± 0.12 8g

 4.29 ± 0.57 ^(a)Experiments were performed in triplicate, and the mean± SD is shown.

To enhance the binding affinity of the compounds with GCase, a newseries of compounds was designed to integrate both the hydrophobicinteraction of the A ring and the π-π interaction of the B ring byfusing the cyclohexyl ring (4) with a phenyl ring (FIG. 2 and Table 4).These derivatives (9a-c) exhibited single digit nanomolar inhibitoryactivity against GCase. Stereochemistry did not seem to be important (9aand 9b). The compound with an indane ring (9c) gave comparable activityto that of the tetralin ring (9a). Attachment of the quinazoline ring tothe tetralin ring (9d) and indane ring (9e) at position 1 instead ofposition 2 (9a and 9c) dramatically increased the IC₅₀ values to the lowmicromolar range, indicating the importance of the orientation of thissubstituent for binding activity of these inhibitors. The introductionof an oxygen atom to give a chromane (9f) did not significantly affectthe potency. These results suggest important hydrophobic and π-πinteractions in the binding of this series of compounds to GCase.

TABLE 4 Structure and inhibitory activity of 2-(pyridin-3-yl)quinazolinederivatives with fused rings^(a)

Comp. R IC₅₀ (μM) 9a

 8.7 ± 1.1 9b

 9.9 ± 1.3 9c

 8.3 ± 1.0 9d

 872 ± 71 9e

 821 ± 73 9f

  35 ± 3 ^(a)Experiments were performed in triplicate, and the mean ± SDis shown.

Finally, we examined the substituent effect on the pyridine ring. Amethyl group was introduced at different positions of the 3-pyridinylring of 9c to give 11a-c (Table 5). Methylation of the pyridine ringdecreased the potency. Whereas the compound with a methyl group atposition 4 of the pyridinyl ring (11a) showed only moderate potency, theother two compounds (11b and 11c) with a methyl group at positions 5-and 6 were much more potent, comparable to that when a 2-furanyl groupreplaced the pyridine ring, but still not as potent as 9c. Thereplacement of the 3-pyridinyl ring in 9c with either phenyl or3-thienyl groups, however, gave compounds that retained the same potencyas 9c, suggesting that more groups could be introduced at position 2 ofthe quinazoline ring.

TABLE 5 Structure and inhibitory activity of 4-(2,3-dihydro-1H-2-indenamino) quinazoline derivatives with aromatic rings^(a)

Comp. R IC₅₀ (μM) 11a

 122 ± 12 11b

12.5 ± 1.7 11c

29.4 ± 3.6 11d

 6.5 ± 0.7 11e

 168 ± 18 11f

 8.2 ± 1.0 11g

 5.2 ± 0.6 11h

21.1 ± 2.4 ^(a)Experiments were performed in triplicate, and the mean ±SD is shown.

We also evaluated the activity of these selected compounds at various pHconditions (Table 6). Interestingly, compared to the inhibitory activityat pH 5.9, the activity of 9a, 9b and 9c with a 3-pyridinyl ringdecreased by 3 fold at pH 5.0, suggesting the pyridine ring wasprotonated at pH 5.0 and interfered with the binding affinity to GCase,while the activity of 11d, 11f, and 11g only dropped slightly at both pHconditions. This result may be applied to the design of a pH sensitivecompound with a protonatable group to differentiate the inhibitoryactivity at acidic and neutral pH conditions.

TABLE 6 GCase inhibitory activity of 9a, 9b, 9c, 11d, 11g and 11f at pH5.0, pH 5.9, and pH 7.0^(a) IC₅₀ (nM) Comp Structure pH 5.0 pH 15.9 pH7.0 9a

22.4 ± 3.4 8.7 ± 1.1 16.9 ± 2.7 9b

30.1 ± 4.5 9.9 ± 1.3 18.8 ± 2.5 9c

25.9 ± 3.9 8.3 ± 1.0 12.7 ± 1.4 11d

10.5 ± 1.5 6.5 ± 0.7  9.4 ± 1.4 11f

13.9 ± 1.9 8.2 ± 1.0 12.9 ± 2.0 11g

 8.9 ± 1.3 5.2 ± 0.6  6.6 ± 1.0 ^(a)Experiments were performed intriplicate, and the mean ± SD is shown.

Compounds shown to act as pharmacological chaperones for GCase (or otherlysosomal enzymes) also stabilize the enzyme against thermaldenaturation. A fluorescent thermal shift assay was developed toevaluate the binding affinity of ligands with protein³⁰. To evaluatetheir abilities to stabilize GCase, the most potent compounds, 9a, 9b,11d, 11g and 11f were accessed in a wild-type GCase fluorescent thermalshift assay with a negative control (8a) and a positive control (IFG) atpH 5.0. The selected compounds increased the GCase melting point in adose-dependent manner (FIG. 3), while inactive compound 8a did notchange the melting points significantly. Most compounds exhibitedgreater ability to stabilize GCase than IFG at lower concentrations, and11g showed the maximum thermal shift up to around 11° C. The maximumthermal shift of these compounds corresponded to their inhibitoryactivity at pH 5.0.

The selected compounds (9a, 9b, 11d, 11g, and 11f) were furtherevaluated against two other lysosomal hydrolases, acid α-glucosidase(GAA) and α-galactosidase A (GLA). The activities of tested enzymes werenot significantly changed by compound treatments up to 100 μM(representative results shown for 11g in FIG. 4).

We further tested compounds 4 and 11g by measuring GCase activity atvarious substrate concentrations (30-150 μM) and in the absence orpresence of increasing concentrations of GCase inhibitors. Similarly toreported non-iminosugar inhibitors²⁰, both of our inhibitors exhibitedlinear mixed inhibition, with an increase in K_(m) and decrease inV_(max) values upon increasing inhibitor concentrations (FIGS. 5A and5B).

Finally, we tested inhibitors 11d, 11f, and 11g in patient N370Sfibroblasts. The fibroblasts were treated with the compounds for 3 daysand levels of GCase protein determined by Western blot. We found 11d,11f, and 11g significantly increased the concentration of GCase, whileIFG at the same concentration did not have an effect (FIGS. 6A and 6B).Consistent with this finding, compound 11g increased GCase activity inpatient cells whereas IFG had no effect (FIG. 6C), suggesting that 11gincreased both GCase levels and activity in patient N370S fibroblasts.

Conclusions

In this paper, we describe the design and SAR of a series of quinazolineGCase inhibitors having single digit nanomolar potency. The SARsuggested that a hydrophobic interaction and a π-π interaction may beinvolved in compound binding to GCase. These quinazoline derivativesalso stabilized GCase, as indicated by thermal shift assays, andexhibited high selectivity against other lysosomal hydrolases.Furthermore, the most potent compounds increased the GCase concentrationand activity in patient N370S fibroblasts, while IFC did not. It will beof interest to further test these compounds in more biological assaysand models of Gaucher's and Parkinson's disease.

Experimental Section

Materials and Methods

Chemistry

Commercially available reagents and solvents were used without furtherpurification. Compounds were synthesized and analyzed as indicated inthis example and the foregoing examples. All reactions were monitored bythin-layer chromatography (TLC) using 0.25 mm Silicycle extra hard 250μM TLC plates (60 F254). Purification of reaction products was carriedout by flash chromatography using an Agilent 971-FP flash purificationsystem with Silicycle silica gel columns. The yields are not optimized.The purity of all compounds was over 95% as analyzed with an Agilent1260 Infinity HPLC system and an Agilent Poroshell 120 EC-C18 (4.6×50mm, 2.7 μm) reverse phase column, detecting with UV absorbance (254 nm).¹H NMR and ¹³C NMR spectra were obtained using a Bruker Avance III 500MHz system (500 MHz for ¹H NMR and 125 MHz for ¹³C NMR) spectrometer.Chemical shifts are reported relative to chloroform (δ=7.26 for ¹H NMRand δ=77.16 for ¹³C NMR spectra) or dimethyl sulfoxide (δ=2.50 for ¹Hand δ=39.52 for ¹³C NMR spectra). Data are reported as br=broad,s=singlet, d=doublet, t=triplet, q=quartet, m=multiplet. Mass spectrawere obtained using a Bruker AmaZon SL system. High resolution massspectra (HRMS) were performed using an Agilent 6210A LC-TOF instrumentwith a dual spray ESI source, with a high resolution Time of Flight(TOF) Mass analyzer and collecting in a 2 GigHz detector mode, coupledwith an Agilent 1200 HPLC. Analytical data are provided in this exampleand the foregoing examples.

Preparation of 4-chloro-2-(pyridin-3-yl)quinazoline (5)²⁵

To a solution of 2-aminobenzonitrile (5.90 g, 50 mmol) in sulfolane (20mL) was added nicotinoyl chloride hydrochloride (12.0 g, 67.4 mmol), andthe mixture was stirred at 100° C. for 16 h. PCl₅ (18.2 g, 87.5 mmol)was added in one portion and stirred at 100° C. for 10 h. The mixturewas cooled to room temperature, and carefully poured into 400 mL ofsaturated sodium bicarbonate solution cooling in an ice bath. The solidwas filtered, washed with water, dried, and purified by flashchromatography to give 5 as a pale-yellow solid (5.50 g, 46%); mp160-163° C. ¹H NMR (400 MHz, CDCl₃) δ 9.76 (d, J=1.3 Hz, 1H), 8.82 (dt,J=8.0, 1.9 Hz, 1H), 8.73 (dd, J=4.7, 1.4 Hz, 1H), 8.26 (dd, J=8.4, 0.8Hz, 1H), 8.10 (d, J=8.4 Hz, 1H), 7.95 (ddd, J=8.4, 7.0, 1.4 Hz, 1H),7.69 (ddd, J=8.2, 7.0, 1.1 Hz, 1H), 7.44 (dd, J=7.5, 4.8 Hz, 1H). ¹³CNMR: (100 MHz, CDCl₃) δ 162.9, 158.3, 151.8, 151.7, 150.3, 136.1, 135.2,132.4, 129.1, 128.9, 126.0, 123.5, 122.8. ESI-MS m/z: 242 (M+H)⁺.

General Procedure for Compound 4, 6a-6i, 7a-7i, 8a-8g and 9a-9f.

A mixture of 4-chloro-2-(pyridin-3-yl)quinazoline 5 (72 mg, 0.3 mmol),amine (0.3 mmol), and potassium carbonate (69 mg, 0.3 mmol) in DMF (3mL) was stirred at room temperature or 60° C. overnight. Water (20 mL)was added, and the formed solid was filtered, washed with water, anddried in vacuo to give product. The products were usually pure (>95%purity). Those products without sufficient purity were purified by flashchromatography.

Preparation of 2-chloro-N-(2,3-dihydro-1H-inden-2-yl)quinazolin-4-amine(10)

A mixture of 2,4-dichloroquinazoline (398 mg, 2.0 mmol),2,3-dihydro-1H-inden-2-amine (266 mg, 2.0 mmol), and potassium carbonate(276 mg, 2.0 mmol) in DMF (5 mL) was stirred at room temperature for 5h. Water (20 mL) was added, and the formed solid was filtered, washedwith water, and solid was dried to give 10 as an off-white solid (390mg, 66%); mp 239-240° C.

¹H NMR (500 MHz, CDCl₃) δ 7.76 (d, J=8.2 Hz, 1H), 7.74-7.69 (m, 1H),7.60 (d, J=8.2 Hz, 1H), 7.41 (t, J=7.4 Hz, 1H), 7.30-7.26 (m, 2H),7.24-7.19 (m, 2H), 6.08 (d, J=6.7 Hz, 1H), 5.27-5.15 (m, 1H), 3.53 (dd,J=16.2, 7.0 Hz, 2H), 3.00 (dd, J=16.2, 4.0 Hz, 2H). ¹³C NMR (125 MHz,CDCl₃) δ 160.6, 157.8, 151.0, 140.7, 133.6, 128.0, 127.1, 126.2, 125.1,120.8, 113.3, 52.6, 40.2. MS (ESI) m/z [M+H]+: calcd, 296.09; found,296.13.

General Procedure for Synthesis of 11a-11h.

A mixture of 2-chloro-N-(2,3-dihydro-1H-inden-2-yl)quinazolin-4-amine 10(148 mg, 0.5 mmol), boronic acid (0.5 mmol), Pd(PPh₃)₄ (58 mg, 0.05mmol), potassium carbonate (276 mg, 2.0 mmol) in dioxane (10 mL) andwater (1.5 mL) was heated at 85° C. under an argon atmosphere for 16 h.Water (5 mL) was added, and the mixture was extracted with EtOAc (25mL×3). The combined organic phase was washed with brine (15 mL), dried(Na₂SO₄), filtered, evaporated, and purified by flash chromatography togive product.

Analytical Data for Compounds 11a-11h

N-(2,3-dihydro-1H-inden-2-yl)-2-(4-methylpyridin-3-yl)quinazolin-4-amine(11a)

White solid (125 mg, 71%); mp 170-172° C. ¹H NMR (500 MHz, CDCl₃) δ 9.16(s, 1H), 8.50 (d, J=5.0 Hz, 1H), 7.91 (d, J=7.9 Hz, 1H), 7.75 (ddd,J=8.3, 7.0, 1.2 Hz, 1H), 7.67 (d, J=7.8 Hz, 1H), 7.49-7.42 (m, 1H), 7.29(dd, J=5.3, 3.4 Hz, 2H), 7.25-7.19 (m, 3H), 5.94 (d, J=7.0 Hz, 1H), 5.26(tdd, J=7.1, 4.4, 2.6 Hz, 1H), 3.54 (dd, J=16.2, 7.1 Hz, 2H), 3.04 (dd,J=16.2, 4.4 Hz, 2H), 2.72 (s, 3H). ¹³C NMR (125 MHz, CDCl₃) δ 161.1,159.1, 151.3, 150.1, 149.2, 146.6, 140.9, 135.4, 132.7, 128.8, 126.8,125.9, 124.9, 120.7, 113.2, 52.3, 40.2, 21.0. HRMS (ESI): calcd forC₂₃H₂₁N₄ [M+H]⁺, 353.1761; found, 353.1765.

N-(2,3-dihydro-1H-inden-2-yl)-2-(5-methylpyridin-3-yl)quinazolin-4-amine(11b)

Yellow solid (134 mg, 76%); mp 200-201° C. ¹H NMR (500 MHz, CDCl₃) δ9.59 (d, J=1.6 Hz, 1H), 8.63 (s, 1H), 8.53 (d, J=1.6 Hz, 1H), 7.92 (d,J=8.0 Hz, 1H), 7.77-7.71 (m, 1H), 7.66 (d, J=7.8 Hz, 1H), 7.45-7.38 (m,1H), 7.30 (dd, J=5.3, 3.4 Hz, 2H), 7.23 (dd, J=5.5, 3.2 Hz, 2H), 5.95(d, J=6.8 Hz, 1H), 5.40-5.29 (m, 1H), 3.61 (dd, J=16.2, 7.2 Hz, 2H),3.08 (dd, J=16.2, 4.8 Hz, 2H), 2.45 (s, 3H). ¹³C NMR (125 MHz, CDCl₃) δ159.3, 158.8, 151.2, 150.3, 147.6, 141.1, 136.0, 134.0, 132.7, 132.6,128.7, 126.8, 125.7, 124.9, 120.8, 113.9, 52.4, 40.1, 18.5. HRMS (ESI):calcd for C₂₃H₂₁N₄ [M+H]⁺, 353.1761; found, 353.1757.

N-(2,3-dihydro-1H-inden-2-yl)-2-(6-methylpyridin-3-yl)quinazolin-4-amine(11c)

Yellow solid (129 mg, 73%); mp 175-176° C. ¹H NMR (500 MHz, CDCl₃) δ9.66 (d, J=1.9 Hz, 1H), 8.69 (dd, J=8.1, 2.2 Hz, 1H), 7.89 (d, J=8.0 Hz,1H), 7.73-7.68 (m, 1H), 7.63 (d, J=7.9 Hz, 1H), 7.41-7.36 (m, 1H),7.29-7.25 (m, 2H), 7.23-7.19 (m, 3H), 5.91 (d, J=6.6 Hz, 1H), 5.33-5.23(m, 1H), 3.58 (dd, J=16.2, 7.2 Hz, 2H), 3.06 (dd, J=16.1, 4.8 Hz, 2H),2.62 (s, 3H). ¹³C NMR (125 MHz, CDCl₃) δ 159.8, 159.2, 158.8, 150.4,149.7, 141.0, 136.0, 132.6, 131.6, 128.8, 126.9, 125.6, 124.9, 122.7,120.5, 113.7, 52.5, 40.2, 24.5. HRMS (ESI): calcd for C₂₃H₂₁N₄ [M+H]⁺,353.1761; found, 353.1767.

N-(2,3-dihydro-1H-inden-2-yl)-2-phenylquinazolin-4-amine (11d)

White solid (84 mg, 50%); mp 221-223° C. ¹H NMR (500 MHz, CDCl₃) δ8.64-8.56 (m, 2H), 7.93 (d, J=8.3 Hz, 1H), 7.72 (ddd, J=8.3, 7.0, 1.3Hz, 1H), 7.64 (d, J=7.8 Hz, 1H), 7.53-7.46 (m, 3H), 7.39 (ddd, J=8.1,7.0, 1.1 Hz, 1H), 7.31 (dd, J=5.3, 3.3 Hz, 2H), 7.24 (dd, J=5.5, 3.2 Hz,2H), 5.86 (d, J=6.6 Hz, 1H), 5.38 (tdd, J=7.1, 5.1, 2.1 Hz, 1H), 3.61(dd, J=16.1, 7.2 Hz, 2H), 3.08 (dd, J=16.1, 5.0 Hz, 2H). ¹³C NMR (125MHz, CDCl₃) δ 160.4, 159.2, 150.5, 141.1, 138.9, 132.5, 130.1, 128.9,128.4, 128.2, 126.8, 125.3, 125.0, 120.4, 113.6, 52.4, 40.2. HRMS (ESI):calcd for C₂₃H₂₀N₃ [M+H]⁺, 338.1652; found, 338.1647.

N-(2,3-dihydro-1H-inden-2-yl)-2-(pyridin-4-yl)quinazolin-4-amine (11e)

Brown solid (59 mg, 35%); mp 246-247° C. ¹H NMR (500 MHz, CDCl₃) δ 8.74(d, J=5.5 Hz, 2H), 8.40 (d, J=5.9 Hz, 2H), 7.93 (d, J=8.2 Hz, 1H),7.78-7.70 (m, 1H), 7.67 (d, J=8.1 Hz, 1H), 7.48-7.39 (m, 1H), 7.29 (dd,J=5.2, 3.4 Hz, 2H), 7.22 (dd, J=5.4, 3.3 Hz, 2H), 5.99 (d, J=6.7 Hz,1H), 5.37-5.29 (m, 1H), 3.59 (dd, J=16.2, 7.2 Hz, 2H), 3.07 (dd, J=16.1,4.8 Hz, 2H). ¹³C NMR (125 MHz, CDCl₃) δ 159.4, 158.4, 150.2, 150.2,146.4, 141.0, 132.8, 129.2, 126.9, 126.3, 125.0, 122.3, 120.6, 114.1,77.2, 77.0, 76.7, 52.5, 40.1. HRMS (ESI): calcd for C₂₂H₁₉N₄ [M+H]⁺,339.1604; found, 339.1608.

N-(2,3-dihydro-1H-inden-2-yl)-2-(thiophen-2-yl)quinazolin-4-amine (11f)

Off-white solid (68 mg, 40%); mp 243-246° C. ¹H NMR (500 MHz, CDCl₃) δ8.08 (d, J=3.1 Hz, 1H), 7.85 (d, J=8.4 Hz, 1H), 7.69 (t, J=7.6 Hz, 1H),7.61 (d, J=8.1 Hz, 1H), 7.45 (d, J=4.9 Hz, 1H), 7.38-7.33 (m, 1H),7.32-7.27 (m, 2H), 7.23 (dd, J=5.3, 3.3 Hz, 2H), 7.18-7.13 (m, 1H), 5.88(d, J=6.3 Hz, 1H), 5.31-5.24 (m, 1H), 3.60 (dd, J=16.2, 7.2 Hz, 2H),3.06 (dd, J=16.2, 5.0 Hz, 2H). ¹³C NMR (125 MHz, CDCl₃) δ 159.0, 157.3,150.4, 145.2, 141.1, 132.6, 129.0, 128.5, 128.2, 127.9, 126.8, 125.1,124.9, 120.5, 113.5, 52.5, 40.1. HRMS (ESI): calcd for C₂₁H₁₈N₃S [M+H]⁺,344.1216; found, 344.1218.

N-(2,3-dihydro-1H-inden-2-yl)-2-(thiophen-3-yl)quinazolin-4-amine (11g)

Yellow solid (75 mg, 44%); mp 232-233° C. ¹H NMR (500 MHz, CDCl₃) δ 8.34(d, J=3.0 Hz, 1H), 8.02 (dd, J=5.0, 0.9 Hz, 1H), 7.87 (d, J=8.3 Hz, 1H),7.74-7.65 (m, 1H), 7.62 (d, J=8.0 Hz, 1H), 7.42-7.34 (m, 2H), 7.30 (dd,J=5.2, 3.4 Hz, 2H), 7.25-7.21 (m, 2H), 5.85 (d, J=6.5 Hz, 1H), 5.36-5.25(m, 1H), 3.58 (dd, J=16.2, 7.2 Hz, 2H), 3.07 (dd, J=16.1, 5.0 Hz, 2H).¹³C NMR (125 MHz, CDCl₃) δ 159.1, 157.8, 150.5, 143.1, 141.1, 132.5,128.6, 127.9, 127.4, 126.8, 125.4, 125.1, 124.9, 120.5, 113.5, 52.3,40.2. HRMS (ESI): calcd for C₂₁H₁₈N₃S [M+H]⁺, 344.1216; found, 344.1215.

N-(2,3-dihydro-1H-inden-2-yl)-2-(furan-2-yl)quinazolin-4-amine (11h)

Pale-yellow solid (80 mg, 49%); mp 231-232° C. ¹H NMR (500 MHz, CDCl₃) δ7.96 (d, J=8.4 Hz, 1H), 7.73-7.67 (m, 1H), 7.67-7.61 (m, 2H), 7.41-7.32(m, 2H), 7.32-7.26 (m, 2H), 7.25-7.21 (m, 2H), 6.57 (dd, J=3.3, 1.7 Hz,1H), 5.98 (d, J=6.8 Hz, 1H), 5.34-5.20 (m, 1H), 3.57 (dd, J=16.1, 7.2Hz, 2H), 3.05 (dd, J=16.1, 5.0 Hz, 2H). ¹³C NMR (125 MHz, CDCl₃) δ159.1, 153.7, 153.4, 150.1, 144.6, 141.0, 132.7, 128.8, 126.8, 125.3,124.9, 120.5, 113.7, 113.1, 111.8, 52.3, 40.1. HRMS (ESI): calcd forC₂₁H₁₈N₃₀ [M+H]⁺, 328.1444; found, 328.1448.

Enzymatic Assays

4-Methylumbelliferyl β-D-glucopyranoside (4MU-β-Glc),4-methylumbelliferyl α-D-glucopyranoside,4-methylumbelliferylα-D-galactopyranoside, and buffer components were purchased fromSigma-Aldrich (St. Louis, Mo.). The recombinant wild-type GCase enzymevelaglucerase alfa (Vpriv®, Shire Human Genetic Therapies, Inc.), acidα-glucosidase enzyme alglucosidase alfa (Lumizyme®, GenzymeCorporation), α-galactosidase A enzyme agalsidase beta (Fabrazyme®,Genzyme Corporation) were used in activity assays. The GCase activityassay buffer was composed of 50 mM citric acid, 176 mM K₂HPO₄, and 0.01%Tween-20 at pH5.0, pH 5.9 and pH7.0. A solution of 1 M sodium hydroxideand 1 M glycine (pH 10) was used as the stop solution for all threeenzyme activity assays.

GCase Enzyme Activity Assay.

The compounds in DMSO solution (0.5 μL/well) were transferred to a black96-well plate (the final titration started from 100 μM, a 12 or 24-point2-fold dilution series). Enzyme solution (33.5 μL, 7.5 nM finalconcentration, in pH 5.9 buffer) was transferred to the wells. After 5min of incubation at room temperature, the enzyme reaction was initiatedby the addition of blue substrate (4MU-β-Glc) (33 μL/well). The finalconcentration of the blue substrate was 1.5 mM. The blue substratereaction was terminated by the addition of 33 μL/well stop solution (1 MNaOH and 1 M glycine mixture, pH 10) after 30 min of incubation at 37°C. The fluorescence was then measured in a Biotek Synergy H1 multi-modeplate reader with Ex=365 nm and Em=440 nm. The selected compounds werefurther assayed under pH 5.0 and pH 7.0 to evaluate their selectivityunder various pH conditions.

Enzyme Kinetic Assay.

The substrate resorufin β-D-glucopyranoside was diluted to fiveconcentrations, ranging from 30 to 150 μM. Seven concentrations ofinhibitors (between 0.5- and 5-fold of IC₅₀ value) and a DMSO controlwere added to the enzyme solution. The final enzyme concentration was 10nM to give a linear reaction over 10 min. Enzyme kinetics were measuredby the addition of 66 μL of substrate to a 96-well assay plate, followedby 33 μL of enzyme solution (with or without inhibitor) using a dispensemodule on a Biotek Synergy H1 multi-mode plate reader. The increase inproduct fluorescence was measured at 1 min intervals for 10 min in theplate reader. The rate of product formation was calculated by convertingthe fluorescence units to nanomoles of product per minute using astandard curve of the free fluorophore, resorufin.

Enzyme Selectivity Assays.

The acid α-glucosidase and α-galactosidase A enzyme activity assaymethods were similar to the GCase enzyme activity assay above withslight modifications. The buffer for the two enzyme assays consisted of50 mM citric acid, 176 mM K₂HPO₄, and 0.01% Tween-20 at pH 4.8. Thefinal enzyme concentrations for acid α-glucosidase and α-galactosidase Awere 8 and 1 nM, respectively. The substrate concentrations for theserelated enzymes were at 0.16 and 0.4 mM, respectively.

Fluorescence Thermal Shift Analysis³¹.

A robotic pipeline in the High Throughput Analysis Laboratory (HTAL) wasused for protein ligand screening by fluorescence thermal shift (FTS)analysis. The pipeline used a Mosquito robot (TTP Labtech) for proteindispensing and an Echo 550 (Labcyte) to add compounds. Thermal scanningcoupled with fluorescence detection was performed on a real-time PCRmachine CFX384 (Bio-Rad Laboratories). The assay was run in 384-well PCRplates, using 10 μL citric acid/K₂HPO₄ buffer (50 mM citric acid, 150 mMK₂HPO₄, pH 5.0) per well. The assay concentration for protein was 1 μMand that for Sypro Orange (Invitrogen) was 5×. Protein was premixed withSypro Orange and dispensed to a plate first, and compounds were added.Final concentrations of compounds ranged from 0.5 to 200 μM. Then theplate was sealed with an optical seal, shaken, and centrifuged. Thethermal scan was from 10 to 95° C. with a temperature ramp rate of 1.5°C./min. The fluorescence was recorded every 10 sec. Data analysis andreport generation were performed using the in-house software excelFTS.The T_(m) of wild-type GCase was found to follow a logarithmicdose-dependent trend when denaturation was performed in the presence ofisofagomine or selected compounds.

N370S Cell Culture and Compound Treatment.

The N370S fibroblast cell line was obtained from Coriell, GM00372,cultured in DMEM medium (Life Tech) including 1% v/v L-glutamine 200 mM(Life Tech), 1% v/v pen strep (Life Tech), 10% FBS (Life Tech) at 37° C.and 5% CO₂ and treated with different compounds at 0.2 μM and 2 μM.After a 3-day treatment, cells were washed with inhibitor free media 3times and fed with inhibitor free media for 1 day, followed by 1% TritonX-100 lysis buffer to lyse cells. Protein concentrations were measuredwith a Bradford kit (Thermo), and the GCase activity was determined atpH 5.5.

Western Blot.

Proteins were denatured in 20% SDS sample buffer at 100° C. for 10 min;10% Bis-Tris gel (Life Tech) was used for gels; Trans-Blot Turbo PVDFkit (Bio-Rad) was used for membrane transfer, and Chemidoc MP system(Bio-Rad) was used to analyze the blots.

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Example 8—Synthesis and Testing of Additional Substituted QuinazolineCompounds

Additional substituted quinazoline compounds were prepared and testedaccording to the procedures provided in the examples above. Results areshown in the following table.

Table of Additional Substituted Quinazoline Compounds. Activity AC₅₀ orIC₅₀ (μM unless No. Structure MW nM indicated) 90

356 0.62 weak activator 91

356 2.82 inhibitor 92

356 5.01 partial inhibitor 93

377 6.31 activator 94

377 2.82 activator 95

334 2.24 partial inhibitor 96

505 0.56 inhibitor 97

356 2.51 inihibitor 98

368 0.079 inhibitor 99

405 0.891 inhibitor 100

416 0.178 inhibitor 101

478 NA 102

546 NA 103

532 NA 104

602 NA 105

629 Weak activator 106

468 NA 107

482 6.25 108

582 0.141 inhibitor 109

550 Weak activator 110

702 Weak activator 111

842 35 activator 112

610 Weak activator 113

348 12.58 activator 114

806 NA 115

354 7.94 activator 116

306 Weak activator 117

554 7.08 activator 118

304 22.38 activator 119

354 5.01 activator 120

368 3.16 activator 121

332 8.91 activator 122

340 5.01 activator 123

346 Weak activator 124

314 10 activator 125

361 Inactive 126

361 Inactive 127

357 1.25 activator 128

373 1.25 activator 129

373 Inactive 130

356 3.98 activator 131

355 Inactive 132

373 Inactive 133

345 31.62 activator 134

345 0.65 activator 135

386 22.39 activator 136

370 3.55 activator 137

370 5.01 activator 138

370 5.62 activator 139

370 5.62 activator 140

356 11.22 inhibitor 141

370 11.22 activator 142

352 0.0071 inhibitor 143

356 Weak activator 144

370 Weak inhibitor 145

565 5.6 nM inhibitor 146

597 39.8 nM inhibitor 147

465 7.5 nM inhibitor 148

395 149

396 150

424 NA 151

381 7.08 152

357 153

633 activator 154

155

156

938 1.95 nM inhibitor 157

Kd value 158

878 79 nM 159

910 126 nM 160

1125.5 7.1 nM 161

It will be readily apparent to one skilled in the art that varyingsubstitutions and modifications may be made to the invention disclosedherein without departing from the scope and spirit of the invention. Theinvention illustratively described herein suitably may be practiced inthe absence of any element or elements, limitation or limitations whichis not specifically disclosed herein. The terms and expressions whichhave been employed are used as terms of description and not oflimitation, and there is no intention in the use of such terms andexpressions of excluding any equivalents of the features shown anddescribed or portions thereof, but it is recognized that variousmodifications are possible within the scope of the invention. Thus, itshould be understood that although the present invention has beenillustrated by specific embodiments and optional features, modificationand/or variation of the concepts herein disclosed may be resorted to bythose skilled in the art, and that such modifications and variations areconsidered to be within the scope of this invention.

Citations to a number of patent and non-patent references are madeherein. The cited references are incorporated by reference herein intheir entireties. In the event that there is an inconsistency between adefinition of a term in the specification as compared to a definition ofthe term in a cited reference, the term should be interpreted based onthe definition in the specification.

We claim:
 1. A compound or a salt or solvate thereof having a Formula I:

wherein: R¹ is hydrogen or C1-C10 alkyl; n is 0, 1, 2, 3, or 4; and R² is hydrogen with the proviso that not both of R¹ and R² are hydrogen, a C1-C10 alkyl group (straight chain or branched), a C3-C8 cycloalkyl group, a saturated or unsaturated homocycle or heterocycle group comprising one 5- or 6-membered ring or comprising two or three fused 5- or 6-membered rings, a phenoxy group, a C1-C6-branched or straight chain alkyl-phenoxy group, a 2,3-dihydro-1H-indenyl group, a 1,2,3,4-tetrahydro-naphthalenyl group, a C2-C10 straight chain or branched alkenyl group, a C2-C10 straight chain or branched alkynyl group, a polyethylene oxide group, a pyridinoxy group, an indoloxy group, a benzofuranoxy group, or R² has a formula selected from

wherein R⁸ is hydrogen, C1-C8 alkyoxy, C1-C8 alkyl, halo, or R⁸ has a formula selected from

p is 1-10 and R⁹ is amino or R⁹ has a formula selected from

wherein R¹⁰ is H, C1-C6 straight chain or branched alkyl, or a succinimidyl group; R² optionally is substituted at one or more positions with a C1-C8 alkyl group, a C1-C8 alkoxy group, a halo group, a phenyl group, a benzyl group, an amino group, a hydroxyl group, a tert-butyloxycarbonyl (BOC) group, a sulfonylmethylphenyl group, a 2,3-dihydro-1,4-benzodioxine-2-carbaldehyde group, a 2,3-dihydromethyl-1,4-benzodioxin group, an imidazole group, a piperazinyl group, a 1-methylpiperazinyl group, a 4-piperazin-1-yl-benzaldehyde group, a 4-(4-methylpiperazin-1-yl)benzaldehyde group, or an azide group; or where n is 0, R¹ and R² together form a heterocycle comprising one, two, or three 5- or 6-membered rings; and R³ is pyridinyl, phenyl, thiophenyl, halo, furanyl, pyrimidinyl, and R³ optionally is substituted at one or more positions with C1-C8 alkyl, halo, amino, amido, or R³ has a formula,

wherein R⁴ is amino, or R⁴ has a formula

wherein R⁵ is —CH₂— or —O—CH₂—CH₂—, and m is 0-4, R⁶ is H or R⁶ has a formula

wherein R⁷ is H, —OH, C1-C8 alkyl, or C1-C8 alkoxy.
 2. The compound of claim 1 wherein R¹ is H and n is
 0. 3. The compound of claim 1 wherein R¹ is methyl and n is 0
 4. The compound of claim 1 wherein R¹ is H and n is
 1. 5. The compound of claim 1 wherein R¹ is methyl and n is
 1. 6. The compound of claim 1 wherein R² is a saturated or unsaturated homocycle or heterocycle comprising one 5- or 6-membered ring, or a saturated or unsaturated homocycle or heterocycle comprising two or three fused 5- or 6-membered rings, and R² optionally is substituted at one or more positions with a C1-C8 alkyl group, a C1-C8 alkoxy group, a halo group, a phenyl group, a benzyl group, a tert-butyloxycarbonyl (BOC) group, a sulfonylmethylphenyl group, a 2,3-dihydro-1,4-benzodioxine-2-carbaldehyde group, a 2,3-dihydromethyl-1,4-benzodioxin group, an imidazole group, a piperazine group, a 1-methylpiperazine group, a 4-piperazin-1-yl-benzaldehyde group, a 4-(4-methylpiperazin-1-yl)benzaldehyde group, or an azide group.
 7. The compound of claim 1 wherein R² is selected from the group consisting of


8. The compound of claim 1 wherein R² is

wherein R⁸ is hydrogen, C1-C8 alkyoxy, C1-C8 alkyl, halo, or R⁸ has a formula selected from

p is 1-10 and R⁹ is amino or R⁹ has a formula selected from

wherein R¹⁰ is H, C1-C6 straight chain or branched alkyl, or a succinimidyl group.
 9. The compound of claim 1 wherein R¹ and R² together form a heterocycle comprising one 5- or 6-membered ring or two or three fused 5- or 6-membered rings.
 10. The compound of claim 8, wherein R¹ and R² are selected from the group consisting of


11. The compound of any of the foregoing claims, wherein R³ is selected from the group consisting of


12. The compound of claim 1, wherein R³ is pyridinyl and R³ optionally is substituted at one or more positions with C1-C8 alkyl, halo, amino, amido.
 13. The compound of claim 1, wherein R³ has a formula,

wherein R⁴ is amino, or R⁴ has a formula

wherein R⁵ is —CH₂— or —O—CH₂—CH₂—, and m is 0-4, R⁶ is H or R⁶ has a formula

wherein R⁷ is H, —OH, C1-C8 alkyl, or C1-C8 alkoxy.
 14. The compound of claim 1 conjugated to biotin, a solid support, or a fluorophore.
 15. The compound of claim 1 having a formula:

wherein n=1-10, and X is a fluorophore, biotin, or a solid support.
 16. A pharmaceutical composition comprising the compound of claim 1 and a pharmaceutical carrier.
 17. A method for treating a disease or disorder that is associated with glucocerebrosidase activity, the method comprising administering the composition of claim
 16. 18. Activated glucocerebrosidase comprising glucocerebrosidase covalently attached to the compound of claim
 1. 19. A pharmaceutical composition comprising the activated glucocerebrosidase of claim 18 and a pharmaceutical carrier.
 20. A method for treating a disease or disorder that is associated with glucocerebrosidase activity, the method comprising administering the composition of claim
 19. 